
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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5.2

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.

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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