Homework Statement
A box of mass 6.30 kg is dropped from a height of 2.10 m onto a super-sized skateboard of mass 8.70 kg that rolls on a horizontal surface where no friction acts. Initially the skateboard moves at 7.00 m/s.
(a) Assume that the box stays on the skateboard. What is the final...
Ok, so you said that I can use conservation of momentum for the interaction between the bullet and block. So is it correct to find the speed of the block using
m1v1=m2v2
(m1v1)/m2=v2
(.025kg*80m/s)/3kg
v2= .66666667 m/s
?
Homework Statement
I fire a bullet at a ballistic pendulum. The large block of wood has a mass M2 = 3.000 kg, and the bullet has a mass of m1 = 25.0 g. The bullet completely penetrates the wood and emerges with a speed of vf = 80.0 m/s. The wood, as part of a pendulum, swings up to a maximum...