Physics Physics Practice Problems Solutions Library

# Vertical Motion & Free Fall Solutions Library

Access 40 Vertical Motion & Free Fall video and text solutions to help you complete your homework.

### Browse Solutions

40 solutions

Vertical Motion & Free Fall

#### Q. A hoodlum throws a stone vertically downward with an initial speed of 12.0m/s from the roof of a building, 30.0m above the ground. (a) How long doe...

Solved • Sep 24, 2019

Vertical Motion & Free Fall

#### Q. Suppose a car manufacturer tested its cars for front-end collisions by hauling them up on a crane and dropping them from a certain height.What heig...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A stone is thrown vertically upward with a speed of 13.0 m/s from the edge of a cliff 75.0 m high.a) How much later does it reach the bottom of the...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.4 s later. If the speed of sound is 340 m/s, how high is the c...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A helicopter is ascending vertically with a speed of 5.20 m/s . At a height of 115 m above the Earth, a package is dropped from a window.How much ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.41 s after passing his window. Rogers room is o...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A stone is thrown vertically upward with a speed of 24.0 m/s.(a) How fast is it moving when it reaches a height of 13.0 m?(b) How much time is requ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A falling stone takes 0.33 s to travel past a window 2.2 m tall.From what height above the top of the window did the stone fall?

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A stone is dropped from the top of a cliff. It is seen to hit the ground below after 3.80 s .How high is the cliff?

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. If a car rolls gently (v0 = 0)off a vertical cliff, how long does it take it to reach 60 km/h ?

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. Estimate how long it took King Kong to fall straight down from the top of the Empire State Building (380 m high).Estimate his velocity just before ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped from the same height on Saturns satellite Encel...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down, 7.00 s after it ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A brick is dropped (zero initial speed) from the roof of a building. The brick strikes the ground in 1.90 s. You may ignore air resistance, so the ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.380 s to pass from th...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. You are climbing in the High Sierra when you suddenly find yourself at the edge of a fog-shrouded cliff. To find the height of this cliff, you drop...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A physics student with too much free time drops a watermelon from the roof of a building. He hears the sound of the watermelon going "splat" after ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A football is kicked vertically upward from the ground and a student gazing out of the window sees it moving upward past her at velocity exttip{v}...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. An alert hiker sees a boulder fall from the top of a distant cliff and notes that it takes 1.30 s for the boulder to fall the last third of the ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A student throws a water balloon vertically downward from the top of a building. The balloon leaves the throwers hand with a speed of 6.05 m/s . Ai...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A brick is dropped from the roof of a tall building. After it has been falling for a few seconds, it falls 41.0 m in a 1.00-s time inte...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A physics teacher performing an outdoor demonstration suddenly falls from rest off a high cliff and simultaneously shouts "Help". When she has fall...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A lunar lander is making its descent to Moon Base I. The lander descends slowly under the retro-thrust of its descent engine. The engine is cut off...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A hot-air balloonist, rising vertically with a constant velocity of magnitude exttip{v}{v} = 5.00 m/s , releases a sandbag at an instant when ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. An egg is thrown nearly vertically upward from a point near the cornice of a tall building. It just misses the cornice on the way down and passes a...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A student standing on the ground throws a ball straight up. The ball leaves the students hand with a speed of 16.0 m/s when the hand is 2.10 m ab...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A rock is tossed straight up from ground level with a speed of 20 m/s. When it returns, it falls into a hole 10 m deep.(a) What is the rock’s veloc...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. Nicole throws a ball straight up. Chad watches the ball from a window 5.70  m above the point where Nicole released it. The ball passes Chad on the...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. Ball bearings are made by letting spherical drops of molten metal fall inside a tall tower - called a shot tower - and solidify as they fall. You...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A ball is thrown directly downward with an initial speed of 8.00 m/s from a height of 30.0 m. After what time interval does it strike the ground?

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A student throws a set of keys vertically upward to her sorority sister who is in a window 4.00 m above. The second student catches the keys 1.50 s...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground. (a) Wi...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A pebble is released from rest at a certain height and falls freely reaching an impact speed of 4 m/s at the floor. Next the pebble is thrown down ...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. An arrow is shot straight up in the air at an initial speed of 15.0 m/s. After how much time is the arrow moving downward at a speed of 8.00 m/s? (...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A rock is thrown downward from the top of a 40.0-m-tall tower with an initial speed of 12 m/s. Assuming negligible air resistance what is the speed...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. On another planet a marble is released from rest at the top of a high cliff. It falls 4.00 m in the first 1 s of its motion. Through what additiona...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A pebble is dropped from rest from the top of a tall cliff and falls 4.9 m after 1.0 s has elapsed. How much farther does it drop in the next 2.0 s...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. The froghopper Philaenus spumarius is supposedly the best jumper in the animal kingdom. To start a jump this insect can accelerate at 4.00 km/s2 ov...

Solved • Oct 29, 2018

Vertical Motion & Free Fall

#### Q. A toy rocket moving vertically upward passes by a 2.0-m-high window whose sill is 8.0 m above the ground. The rocket takes 0.15 s to travel the 2.0...

Solved • Sep 25, 2018

Vertical Motion & Free Fall

#### Q. Michael stands motionless holding a baseball in his hand. After a while he tosses it upwards, and it travels up for a while before turning about an...

Solved • May 23, 2017