Physics Solutions Library

# Physics Solutions Library

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2,817 solutions

Position & Velocity Graphs

#### Q. How far does the runner whose velocity-time graph is shown in the figure travel in 16 s? The vertical scaling is set by vs= 8.0 m/s.

Solved • Sep 25, 2019

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

Kinematics Equations

#### Q. A car traveling 56.0 km/h is 24.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.00 s later. (a) What is the magn...

Solved • Sep 24, 2019
Conservation of Energy in Rolling Motion

#### Q. A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without slipping, reaching a maximum height of 6.50 m above the base of the...

Solved • Mar 18, 2019
Parallel Axis Theorem

#### Q. A thin, rectangular sheet of metal has mass M and sides of length a and b. Use the parallel-axis theorem to calculate the moment of inertia of the ...

Solved • Mar 18, 2019
Intro to Rotational Kinetic Energy

#### Q. If we multiply all design dimensions of an object by a scaling factor f, its volume and mass will be multiplied by f3.a) By what factor will its mo...

Solved • Mar 18, 2019
Rotational Velocity & Acceleration

#### Q. A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to θ(t)= γt+ βt3, where γ = 0...

Solved • Mar 18, 2019