Problem: 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 velocity as it hits the bottom of the hole?(b) How long is the rock in the air, from the instant it is released until it hits the bottom of the hole?

🤓 Based on our data, we think this question is relevant for Professor Pacheco's class at UMD.

FREE Expert Solution
Problem Details

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 velocity as it hits the bottom of the hole?
(b) How long is the rock in the air, from the instant it is released until it hits the bottom of the hole?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Vertical Motion and Free Fall concept. You can view video lessons to learn Vertical Motion and Free Fall. Or if you need more Vertical Motion and Free Fall practice, you can also practice Vertical Motion and Free Fall practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Patrick took 4 minutes and 36 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Pacheco's class at UMD.