Recent content by Unknown_20

thanks for the help.

A golf ball (m = 38.6 g) is struck a blow that makes an angle of 46.3 degrees with the horizontal. The drive lands 273 m away on a flat fairway. The acceleration of gravity is 9.8 m/s^2 . If the golf club and ball are in contact for 10.2 ms, what is the average force of impact? Neglect air...

What is the formula for instantaneous power if I have velocity and force? And what is the formula in general?

If I knew that I would not have asked the question.

the equation is P=(F*d)/t

Well, I found that the acceleration is equal to .462039 until the speed is constant. I'm not sure what steps to take from here or if I'm even on the right track.

Can someone please help with this? Thanks in advance. A(n) 560 kg elevator starts from rest. It moves upward for 4.61 s with a constant acceleration until it reaches its cruising speed of 2.13 m/s. The acceleration of gravity is 9.8 m/s2. Find the average power delivered by the elevator...

thanks for the help.

Water flows over a section of Niagara Falls at a rate of 1.38 x 10^6 kg/s and falls 32 m. The acceleration of gravity is 9.8 m/s2 . How many 80 W bulbs can be lit with this power?