Yr 10 Forces & Motion

Front

The momentum of an object depends upon the object's ___________&_____________.

Back

mass and velocity

Front

A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision. What is the velocity of the second ball after the collision?

Back

5 m/s

Front

Momentum is a ____________________ quantity

Back

vector

Front

In any collision (crash) the ______ is ALWAYS constant

Back

Total Momentum

Front

When two objects collide, the P_before is ____________ the P_after.

Back

equal to

Front

What is the unit for momentum?

Back

kg m/sec

Front

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

Back

0.1 kg-m/s

Front

What is the anticlockwise moment acting on this crane?

Back

100,000Nm

Front

Assuming the system is in equilibrium, calculate the missing distance d

Back

3.4 m

Front

A boy of weight 600N sits on the see-saw at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?

Back

450 N