Recent content by DStan27

Spring Force A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 49 cm below the ceiling. If a 75 g clay ball is placed gently on the pan, the pan hangs 60 cm below the ceiling. Suppose the clay ball is dropped from the ceiling onto an empty pan. What...

nevermind i figured it out.

A vertical spring with k = 495 N/m is standing on the ground. You are holding a 5.8 kg block just above the spring, not quite touching it. How far does the spring compress if you let go of the block suddenly? i thought i could just use k = F/distance so 495(D) = (5.8)(9.8) D = .1148...

should i be using mv = m1v1 + m2v2??

A 1550 kg weather rocket accelerates upward at 20 m/s2. It explodes 2.0 s after liftoff and breaks into two fragments, one twice as massive as the other. Photos reveal that the lighter fragment traveled straight up and reached a maximum height of 530 m. What were the speed and direction of the...

ok, thanks i was actually doing it right but I'm an idiot and converted g to kg wrong.

i've tried using (M1*V1)+(M2*V2) = (M1+M2)*Vf but that didn't work. I've also tried to use M1V1 = M2V2 a couple of ways but can't get the right answer. am i even close to using the right equation??

can anyone help me with this problem ?? if i am given the mass of a person shooting and arrow, the mass of the arrow and the velocity at which the arrow was shot, what formula could i use to find the the recoil speed of the person.