While leaning out a window that is 7.10 m above the ground, you drop a 0.600-kg...

Transcribed Image Text:

While leaning out a window that is 7.10 m above the ground, you drop a 0.600-kg basketball to a friend at ground level. Your friend catches the ball at a height of 1.00 m above the ground. Determine the following. (a) the amount of work done by the force of gravity on the ball W= x A good approach to solving a problem frequently involves allowing the problem to ask you a series of questions. In this case, the problem first asks for an expression for the work done on the ball by the force of gravity. After you write this expression, it then asks you what is the force of gravity, over what distance does the force of gravity act, and finally, what is the angle between the direction of the force of gravity and the direction the ball is moving? After answering these questions, you can solve the problem. J (b) the gravitational potential energy of the ball-Earth system, relative to the ground when it is released Uo= What is an expression for the gravitational potential energy of a system? Do you know all quantities needed in order to calculate the gravitational potential energy of the system of the ball and Earth when the ball is released? ] (c) the gravitational potential energy of the ball-Earth system, relative to the ground when it is caught What is an expression for the gravitational potential energy of a system? Do you know all quantities needed in order to calculate the gravitational potential energy of the system of the ball and Earth when the ball is caught? ] (d) the ratio of the change (UfUo) in the gravitational potential energy of the ball-Earth system to the work done on the ball by the force of gravity AU =-1 W While leaning out a window that is 7.10 m above the ground, you drop a 0.600-kg basketball to a friend at ground level. Your friend catches the ball at a height of 1.00 m above the ground. Determine the following. (a) the amount of work done by the force of gravity on the ball W= x A good approach to solving a problem frequently involves allowing the problem to ask you a series of questions. In this case, the problem first asks for an expression for the work done on the ball by the force of gravity. After you write this expression, it then asks you what is the force of gravity, over what distance does the force of gravity act, and finally, what is the angle between the direction of the force of gravity and the direction the ball is moving? After answering these questions, you can solve the problem. J (b) the gravitational potential energy of the ball-Earth system, relative to the ground when it is released Uo= What is an expression for the gravitational potential energy of a system? Do you know all quantities needed in order to calculate the gravitational potential energy of the system of the ball and Earth when the ball is released? ] (c) the gravitational potential energy of the ball-Earth system, relative to the ground when it is caught What is an expression for the gravitational potential energy of a system? Do you know all quantities needed in order to calculate the gravitational potential energy of the system of the ball and Earth when the ball is caught? ] (d) the ratio of the change (UfUo) in the gravitational potential energy of the ball-Earth system to the work done on the ball by the force of gravity AU =-1 W

Answer rating: 100% (QA)

Sol Mass of basketball m0600 kg Initial height H710 m Final height h1m g98 ms2 a Calculating the amo... View the full answer