A teenager is pushing a cart. There is no friction between the cart and the ground. Mass of the cart is 120 kg. Cart is initially at rest (at time = 0 s). Direction to the right is positive. A. He pushed the cart for 5 s (from t = 0 s to t = 5 s) with a force of 75 N to the right hand side. B. Then he stopped pushing for 5 s (from t = 5 s to t = 10 s). C. Then he pushed the cart for 10 s (from t = 10 s to t = 20 s) with a force of 75 N to the left hand side. Questions: 1. Calculate the acceleration of the cart at t = 2 s 2. Calculate the velocity of the cart at t = 5 s. 3. Calculate the velocity of the cart at t = 10 s.
A teenager is pushing a cart. There is no friction between the cart and the ground. Mass of the cart is 120 kg. Cart is initially at rest (at time = 0 s). Direction to the right is positive. A. He pushed the cart for 5 s (from t = 0 s to t = 5 s) with a force of 75 N to the right hand side. B. Then he stopped pushing for 5 s (from t = 5 s to t = 10 s). C. Then he pushed the cart for 10 s (from t = 10 s to t = 20 s) with a force of 75 N to the left hand side. Questions: 1. Calculate the acceleration of the cart at t = 2 s 2. Calculate the velocity of the cart at t = 5 s. 3. Calculate the velocity of the cart at t = 10 s.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 15P
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A teenager is pushing a cart. There is no friction between the cart and the ground. Mass of the cart is 120 kg. Cart is initially at rest (at time = 0 s). Direction to the right is positive.
A. He pushed the cart for 5 s (from t = 0 s to t = 5 s) with a force of 75 N to the right hand side.
B. Then he stopped pushing for 5 s (from t = 5 s to t = 10 s).
C. Then he pushed the cart for 10 s (from t = 10 s to t = 20 s) with a force of 75 N to the left hand side.
Questions:
1. Calculate the acceleration of the cart at t = 2 s
2. Calculate the velocity of the cart at t = 5 s.
3. Calculate the velocity of the cart at t = 10 s.
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