Recent content by reverse

Does the ball clear the net?? Please help, thanks in advance? A tennis player hits a ball 2.0m above the ground. The ball leaves his racquet with a speed of 22.0m/s at an angle 4.5 degrees above the horizontal. The horizontal distance to the net is 7.0 m, and the net is 1.0 high. i know that...

A magnetic computer disk 8.0 cm in diameter is initially at rest. A small dot is painted on the edge of the disk. The disk accelerates at 600 rad/ s^2 for 1/2 s, then coasts at a steady angular velocity for another 1/2 s . a) What is the speed of the dot at t = 1.0 s? b)Through how many...

i divided and multiplied 30 by 2 and both answers were wrong

no :( i don't know why??

no problem.. ok so i got 30 degrees and 150 degrees..?

ya i did that.. and i got 45 degrees, is that right tho??.. because it wasnt the right answer.. and if taking the half of it would be 22.5 degrees??

Projectile, and uniform circular motion questions please help! can anyone please help me.. i keep getting the wrong answers over and over.. you don't have to solve the problem or give me the results.. explanation of how to do them would really be appreciated.. thanks in advance. 1) A...