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s2008m [1.1K]
3 years ago
14

you push a book a distance of 5 meters with a force of 10 newtons for 2 seconds how much work did you do on the book

Physics
1 answer:
GrogVix [38]3 years ago
3 0

Answer:

50 J

Explanation:

Work, W=Fd where F is the applied force and d is the distance

Substituting 10 N for F and 5 m for d then work done on the book can be expressed as

W=10 N* 5 m=50 Nm= 50 J

Therefore, the work done is equivalent to 50 J

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1 year ago
Even if there were some friction on the ice, it is still possible to use conservation of momentum to solve this problem, but you
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The problem referred to in this question is missing and it is;

Two hockey pucks of identical mass are on a flat, horizontal ice hockey rink. The red puck is motionless; the blue puck is moving at 2.5 m/s to the left. It collides with the motionless red puck. The pucks have a mass of 15 g. After the collision, the red puck is moving at 2.5 m/s, to the left. What is the final velocity of the blue puck?

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The condition is that p_f - p_i which is the change in momentum will not be equal to zero but equal to the impulse (Ft).

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Now, in this question we are told that some friction wants to be introduced on the ice and it's possible to still use conservation of momentum.

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