A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0
Question:
A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 25.0° below the horizontal.
(a) What is the work done on the cart by friction?
(b) What is the work done on the cart by the gravitational force?
(c) What is the work done on the cart by the shopper?
(d) Find the force the shopper exerts, using energy considerations.
(e) What is the total work done on the cart?
629x1011m
Step by Step Answer:
a The work done by friction is in the opposite directio...View the full answer
Marketing An Introduction
ISBN: 978-0133581584
5th Canadian edition
Authors: Philip Kotler, Valerie Trifts, Lilly Gary Armstrong
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In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
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