Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 8, Problem 2P
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How long must a force of 45.0 N be applied to the ball to stop it?
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- A baseball catcher is performing a stunt for a television commercial. He will catch a baseball (mass 145 g) dropped from a height of 60.0 m above his glove. His glove stops the ball in 0.0100 s. What is the force exerted by his glove on the ball?arrow_forwardPick an isolated system for the following scenarios while including the fewest number of objects as possible. a. A satellite in orbit around the Earth b. An airplane in flight c. A truck driving along the road d. A person jumpingarrow_forwardA 3.00-kg object is moving in a plane, with its x and y coordinates given by x = 5t2 1 and y = 3t3 + 2, where x and y are in meters and t is in seconds. Find the magnitude of the net force acting on this object at t = 2.00 s.arrow_forward
- A force of 1.100×103 N pushes a man on a bicycle forward. Air resistance pushes against him with a force of 805 N . If he starts from rest and is on a level road, what speed ? will he be going after 35.0 m ? The mass of the bicyclist and his bicycle is 90.0 kg. 25.3 m/s 15.1 m/s 8.51 m/s 10.3 m/sarrow_forwardA bowling ball weighing 54.0 N initially moves at a speed of 5.60 m/s. How long must a force of 36.0 N be applied to the ball to stop it?arrow_forwardAn archer pulls a bowstring back a distance of 20 cm with an average force of 85 N. The arrow has a mass of 20.0 g. When he releases the string, what is the velocity of the arrow when it leaves the bow? 41 m/s 1.2 m/s 39 m/s 32 m/s 22 m/sarrow_forward
- A large cruise ship of mass 6.70 ✕ 107 kg has a speed of 12.4 m/s at some instant. What is the magnitude of the constant force required to stop it as it undergoes a displacement of 2.90 km?arrow_forward: A particle of mass 3 kg is moving with constant velocity of magnitude 10 m/s for 20s. The magnitude of the resultant force acting on the particle is: B) 1.5N B) 3 N C) 6 N D) 0 Narrow_forwardThree forces act on an object, considered to be a particle, which moves with constant velocity v = (3i ^ − 2j ^ ) m/s. Two of the forces are F→1 = (3i ^ + 5j ^ − 6k ^ ) N and F→2 = (4i ^ − 7j ^ + 2k ^ ) N. Find the third force.arrow_forward
- A bucket of water with a mass of 5 kg is accelerated upward by cord of negligible mass having a breaking strength of 75 N. If the bucket has an initial velocity of 2 m/s, how far will the bucket be raised in 5 s?arrow_forwardA robot with fancy wheels is trained to move in two directions simultaneously. The force in the forward direction is 10 N and the force in the horizontal direction is 8 N. If the robot starts from rest, has a mass of 75 kg and travels for 100 seconds, what is the magnitude of the robot's final displacement?arrow_forwardA net (unbalanced) external force of 100.0 N acts on an object of mass 20.0 kg whose initial speed is 10.0 m/s. The force acts in the opposite direction from the object's motion, and it acts for 1.00 s. What is the object's final speed, in m/s?arrow_forward
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Newton's Second Law of Motion: F = ma; Author: Professor Dave explains;https://www.youtube.com/watch?v=xzA6IBWUEDE;License: Standard YouTube License, CC-BY