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It takes 242 kJ of work to accelerate a car from 20.2 m/s to 28.2 m/s. What is the car's mass?
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A person pushes a 20.1-kg shopping cart at a constant velocity for a distance of 39.5 m on a flat horizontal surface. She pushes
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2. 578 views
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is
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2. 976 views
A person in a kayak starts paddling, and it accelerates from 0 to 0.577 m/s in a distance of 0.565 m. If the combined mass of
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2. 2,446 views

find Lx = Lsin21 Ly = Lcos21 y direction, Lcos21 - 55600 = 0 L =44559.63N x direction Lsin21 - Fair = 0 where F air= 15968.74N
F=ma we know m but don't know the a . So lets find the a first. V(final)^2 = V(initial)^2+2d so a = V(final)^2/2d a=0.295 now F=ma F= 60.6*0.295 =17.851 N

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