In baseball, a pitcher can accelerate a 0.15-kg ball from rest to 98 mi/h in a distance of 1.7 m. (a) What is the average force exerted on the ball during the pitch? (b) If the mass of the ball is increased, is the force required of the pitcher increased, decreased, or unchanged?

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A:

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Q: A 164 kg mass is lifted 1.8 m. What is the potential energy of the mass (in J)E Your Answer:

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A: Given :- mass of worker m =48 kg  Radius of circle r = 6 m  Speed of worker v = 5 m/s

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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: