-!!! URGENT !!!-
Please answer ASAP!
1. What is the mass of a car that weighs 140,000 N?
2. Calculate Dave's acceleration knowing that in a race he starts from rest and reaches a speed of 15.3m/s in 4.71 s.
3. Determine the speed of the block of wood when a 12 g bullet hits a 2.3 kg block at a speed of 350 m/s.
4. A 22 kg astronaut in orbit pushes a 40kg astronaut. If the 22kg astronaut travels away at 10 m/s what speeds and direction will the 40 kg astronaut travel away at.
