Recent content by rubyred401

am i also missing a factor for part b?

Homework Statement A car of mass 1240 kg has kinetic energy of 116 kJ. There is a stalled SUV of mass 2710 kg blocking the intersection. Because he obliviously chatting away on his cell phone, the driver of the car plows into the SUV without braking. The two vehicles stick together (a...

so for the velocity after an perfectly nonelastic collision, J = pf -pi pf = mv .4209 N·s.= .7340 kg (v) v = .5734 m/s correct?

impulse is also equal to the change in momentum: delta p = pf -pi and p = mv but how would you know pf or pi given just delta p?

well the data is given in a graph of force vs. time so the area under the curve represents the impulse (0.4209 N·s). I just don't know how to get from that impulse value to velocity?

Homework Statement The students set up a cart with a spring attached to the force probe.They weigh the cart assembly and find that its mass is 734.0 g. They launch the cart towards the target and collect the following force-vs.-time data. The students discover that Data Studio has an...