Achild’s toy sits on the bottom of a swimming pool in which the water depth is d=1.8 m. to a child standing at the pool edge, the toy appears to be a horizontal distance of 4.2 m away from the sidewall. assume the child’s eyes are 3.5m above the bottom of the pool. what is the actual horizontal distance from the sidewall to the toy?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)