A ball rolls up a slope. At the end of three seconds its velocity is 20 cm/s; at the end of eight seconds its velocity is 0. What is the average acceleration from the third to the eighth second? Oa 5.0 cm/s^2 Ob4.0 cm/s^2 C. 6.0 cm/s^2 Od. 25 cm/s^2

A ball rolls up a slope. At the end of three seconds its velocity is 20 cm/s; at the end of eight seconds its velocity is 0. What is the average acceleration from the third to the eighth second? Oa 5.0 cm/s^2 Ob4.0 cm/s^2 C. 6.0 cm/s^2 Od. 25 cm/s^2

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 30PE: A fireworks shell is accelerated from rest to a velocity of 65.0 m/s over a distance of 0.250 m. (a)...

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Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

A ball rolls up a slope. At the end of three seconds its velocity is 20 cm/s; at the end of eight seconds its velocity is 0. What is the average
acceleration from the third to the eighth second?
O a. 5.0 cm/s^2
O b. -4.0 cm/s^2
Oc 6.0 cm/s^2
O d. 2.5 cm/s^2
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