The total momentum after a collision compared to the total momentum before will always be____
Question 4
4.
Use the Conservation of Momentum to solve the following problem:
Two ice skaters start at rest. The man pushes against the woman with a force of 10N. The man has a mass of 80kg, the woman is 60kg. Both of them slide away from each other, the woman travels at 10m/s. What is their total momentumafter the push?
Question 5
5.
A rollercoaster cart can never reach a point higher than the first drop because__________
Question 6
6.
A dog riding a skateboard has a momentum of 9kgm/s. If the mass of the dog is 12kg, what is the velocity of the dog?_______ Units: _______
Question 7
7.
Select all examples of KINETIC ENERGY
Question 8
8.
A person riding a bike has a Mechanical Energy of 240 J. If they have a potential energy of 60 J how much Kinetic energy do they have?_______ Units: _______
Question 9
9.
Two velcro balls are fired at each other and stick together in midair. Ball 1 has a mass of 3kg and is launched at 12m/s. Ball 2 has a mass of 1kg and is launched at -8m/s. What is their Final Velocity?