Vertical Motion and Free Fall Video Lessons

Video Thumbnail

Concept

Problem: At launch a rocket ship weighs 4.5 million pounds. When it is launched from rest, it takes 8.00 s to reach 161 km/h ; at the end of the first 1.00 min , its speed is 1610 km/h .What is the average acceleration (in m/s2) of the rocket during the first 8.00 s?Assuming the acceleration is constant during each time interval (but not necessarily the same in both intervals), what distance does the rocket travel during the first 8.00 s?What is the average acceleration (in m/s2) of the rocket between 8.00 s and the end of the first 1.00 min?Assuming the acceleration is constant during each time interval (but not necessarily the same in both intervals), what distance does the rocket travel during the interval from 8.00 s to 1.00 min?

Problem Details

At launch a rocket ship weighs 4.5 million pounds. When it is launched from rest, it takes 8.00 s to reach 161 km/h ; at the end of the first 1.00 min , its speed is 1610 km/h .

What is the average acceleration (in m/s2) of the rocket during the first 8.00 s?

Assuming the acceleration is constant during each time interval (but not necessarily the same in both intervals), what distance does the rocket travel during the first 8.00 s?

What is the average acceleration (in m/s2) of the rocket between 8.00 s and the end of the first 1.00 min?

Assuming the acceleration is constant during each time interval (but not necessarily the same in both intervals), what distance does the rocket travel during the interval from 8.00 s to 1.00 min?

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.

What professor is this problem relevant for?

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