Question

A 410-N/m spring is attached to the ceiling as shown below. A ball of a mass 2.8 kg is placed against the spring so the spring is compressed by x = 0.29 m. Initially the ball is at h = 0.4 m above the floor and it is at rest, then the ball is released. What is the speed of the ball when it hits the floor? The speed of the ball when it hits the floor, v = [ ] Units Select an answer Before the ball was released, what are the elastic PE of the spring and the gravitational PE of the ball (relative to the floor)? The elastic PE of the spring, PE? = [ ] Units Select an answer The gravitational PE of the ball, PE? = [ ] Units Select an answer

          A 410-N/m spring is attached to the ceiling as shown below. A ball of a mass 2.8 kg is placed against the spring so the spring is compressed by x = 0.29 m. Initially the ball is at h = 0.4 m above the floor and it is at rest, then the ball is released. What is the speed of the ball when it hits the floor?
The speed of the ball when it hits the floor, v = [ ] Units Select an answer
Before the ball was released, what are the elastic PE of the spring and the gravitational PE of the ball (relative to the floor)?
The elastic PE of the spring, PE? = [ ] Units Select an answer
The gravitational PE of the ball, PE? = [ ] Units Select an answer

A 410-N/m spring is attached to the ceiling as shown below. A ball of a mass 2.8 kg is placed against the spring so the spring is compressed by x = 0.29 m. Initially the ball is at h = 0.4 m above the floor and it is at rest, then the ball is released. What is the speed of the ball when it hits the floor?
The speed of the ball when it hits the floor, v = [ ] Units Select an answer
Before the ball was released, what are the elastic PE of the spring and the gravitational PE of the ball (relative to the floor)?
The elastic PE of the spring, PE? = [ ] Units Select an answer
The gravitational PE of the ball, PE? = [ ] Units Select an answer

Added by Margaret P.

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