The heaviest watermelon weighed in at 159 kg (350.5 lbs.) and was grown by Chris Kent (USA) of Sevierville, Tennessee. Chris releases the watermelon from rest from the top of a 150.0m tall building by a small crane. We neglect air resistance. If needed, use 9.80 m/s2 for the magnitude of g. What is the time it takes to hit the ground after being released and what will be the final impact velocity when it hits the ground? Report answers to 3 sig figs

A 0.50 kg ball is thrown up into the air with an initial speed of 9.0 m/s.  What is the maximum height of the ball?

What, roughly, is the percent uncertainty in the volume of a spherical beach ball of radius r = 0.84 ± 0.04 m?

9. A 58.4 gram tennis ball is thrown down at the ground. Right before it strikes the floor, its speed is 28.8 m/s. The ball then bounces back off the floor, upwards at 20.5 m/s. If the ball is in contact with the floor for 64.4 ms, calculate the average force on the ball (magnitude and direction). Assume the convention that upward is positive. a. 7.53 N; upward b. 44.7 N; upward c. 44.7 N; downward d. 7.53 N; downward e. 2.88 N; upward

T3.22 Please help me answer this physics question.

Sam, whose mass is 74.0 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 220.0 N and a coefficient of kinetic friction wtih the snow of 0.07. Unfortunately, the skis run out of fuel after only 11.5 seconds. What Sam's top speed (in m/s) assuming that the acceleration due to gravity is 9.80 m/s2? How far (in m) has Sam traveled when he finally coasts to a stop?

A 0.1 kg ball is launched from a vertical cannon, 0.7 m high and 0.05 m wide. The cannon exerts a 146 N force on the ball for a period of 0.03 s. What is the final height ofthe ball?

Sam, whose mass is 80 kgkg , takes off across level snow on his jet-powered skis. The skis have a thrust of 160 NN and a coefficient of kinetic friction on snow of 0.10.1. Unfortunately, the skis run out of fuel after only 15 ss . What is Sam's top speed? Express your answer to two significant figures and include the appropriate units. How far has Sam traveled when he finally coasts to a stop? Express your answer to two significant figures and include the appropriate units.

1. A 3.0-kg cart on a frictionless horizontal surface is connected with an ideal string and an ideal pulley to a *.0-kg hanging mass. The hanging mass is initially held a height of 0.45 m above the ground. The hanging mass is released. How fast is the hanging mass going as it hits the ground?

3. An urban myth states that a penny dropped from the top of the Empire State Building (1440 ft tall) in NYC could be lethal. Ignore air friction and find the final velocity of the penny.