College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Newton's Second Law
Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:
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Question

5.2

A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 3.70-kg puck has a velocity of 1.701 m/s at one instant. Eight seconds later, its velocity is (9.001 + 9.0ĵ) m/s. (a) Assuming the rocket engine exerts a constant horizontal force, find the components of the force. (b) Find its magnitude.
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Transcribed Image Text:A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 3.70-kg puck has a velocity of 1.701 m/s at one instant. Eight seconds later, its velocity is (9.001 + 9.0ĵ) m/s. (a) Assuming the rocket engine exerts a constant horizontal force, find the components of the force. (b) Find its magnitude.
(a) First, we will calculate the acceleration of the puck in order to find the components of the force. We know that ; = 1.70î m/s, V = (9.001 + 9.0ĵ) m/s, and t = 8.00 s. 8 = = AV At 9 Î+9 8.00 s 1) m/s - ( 1: 1.7 î) m/s 2.3 X Your response differs from the correct answer by more than 10%. Double check your calculations.Î + 9 8.00 s 1.7 X = Your response differs from the correct answer by more than 10%. Double check your calculations.Î + 9 Your response differs from the correct answer by more than 100%.ĵ) m/s² X Ĵm/s
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Transcribed Image Text:(a) First, we will calculate the acceleration of the puck in order to find the components of the force. We know that ; = 1.70î m/s, V = (9.001 + 9.0ĵ) m/s, and t = 8.00 s. 8 = = AV At 9 Î+9 8.00 s 1) m/s - ( 1: 1.7 î) m/s 2.3 X Your response differs from the correct answer by more than 10%. Double check your calculations.Î + 9 8.00 s 1.7 X = Your response differs from the correct answer by more than 10%. Double check your calculations.Î + 9 Your response differs from the correct answer by more than 100%.ĵ) m/s² X Ĵm/s
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