A 24.0 kg child plays on a swing having support ropes that are 2.30 m long. Atriend puls her back until the ropes are 45.0 from the vertical and releases her trom rest. Constarta Part A What is the potential energy for the child just as she is released, compared with the potential energy t the botom of the swing? Express your answer in joules. U- Submit Beauest Anwer Part B How fast will she be moving at the bottom of the swing? Express your answer in meters per second. m/s

A 24.0 kg child plays on a swing having support ropes that are 2.30 m long. Atriend puls her back until the ropes are 45.0 from the vertical and releases her trom rest. Constarta Part A What is the potential energy for the child just as she is released, compared with the potential energy t the botom of the swing? Express your answer in joules. U- Submit Beauest Anwer Part B How fast will she be moving at the bottom of the swing? Express your answer in meters per second. m/s

Similar questions

What is the answer to question 1 c and question 2
Power Calculation 1. A 50-kg marathon runner runs up the stairs to the top of the building at a speed of 1. atop second with 9.84 cm per step. Calculate the required average power of the runner to do the run. Show your solution Work and Force Calculation 2. a. A cart is pulled by a force of F = 30 N-40 N 9 and undergoes a displacement of =-9.0m 2-3.0 m 9. Calculate the work done. b. A potential energy function is expressed as PE= a - b Find the expression for the conservative force for a = b = 1. c. Calculate the work done by the force F [N] in the diagram. 1 2 3 4 -1+ I x [m]
2. A ead slides without friction around a loop-the-loop. The bead is released from a heigh h=3.5 R. R a) What is the bead`s speed at point A. b) How large is the normal force on the ead if its mass is 5g.
HI, Please see attached image
b
Two identical blocks, A and B, are initially at rest ona level, frictionless surface. At time t = t 1 , handsbegin to push the blocks toward each other as shownat right. Each hand exerts a constant horizontal forceof magnitude Fo . At time t = t 2 , each block has moveda distance d o from its initial position. is the work done on block A positive or negative? Block B? what is the net work?
How much power is expended if you lift a 50 N rock 10 m in 2 seconds? A.250 W B.25 W C.2.5 W D.5 W
A 745-N Marine in basic training climbs a 8.5-m vertical rope at a constant speed in 8.75 s. What is his power output? W Need Help? Read It Watch It