A kilogram ball is rolling in a straight line if its momentum 11.7 is 7.02 kg m/s what is the ball's velocity?

Question

jamesj · Answer

What's the definition of momentum?  Use that formula here.  So what is it?

anonymous · Answer

p = mv

jamesj · Answer

Right.  You know p and you know m.  So now you just need to solve for v.

anonymous · Answer

so how the equation is gonna be rearranged? momentum / mass?

jamesj · Answer

Yes. If
p = mv
then
v = p/m

anonymous · Answer

thanks! :) & i got one more problem.

anonymous · Answer

A beach ball is rolling in a straight line toward you with a momentum 2.8 kg m/s. It has a velocity of 0.505 m/s. What is the ball's mass?

anonymous · Answer

is it going to be the same equation?

jamesj · Answer

Use exactly the same formula:
p = mv

anonymous · Answer

okay, LAST one.

anonymous · Answer

A car has a weight of 156.8 N and travels North for 8.9 seconds. What is the car's final velocity?

jamesj · Answer

The car's final velocity could be anything in the direction of north, but we can't say what its magnitude is.