A 400 g is placed at 40 cm on the meterstick with the knife-edge at the center (50 cm). What must be the mass of the object to be placed at 90 cm of the meterstick? Select one: O 100 g O 200 g O 900 g O 400 g

A bowling ball rolls up a ramp 0.8 m high without slipping. It has an initial velocity of its center of mass of 4.2 m/s. What is its velocity at the top of the ramp?vf=vf=  m/s If the ramp is 1.6 m high does it make it to the top?

An  equal arm balance is made by placing a meter stick at its center so it looks like a seesaw. The first mass m=3 kg is hung at r= 0.25 m To the left of the center. A second mass equaling 1.4 kg is hung at 0.4 m to the right of the center. At what location with respect to the center of the meter stick must a third mass of 0.8 kg be hung for the meter stick to be in equilibrium? to the left of the center. A second mass equaling 1.4 kg is hung at 0.4 m to the right of the center. At what location with respect to the center of the meter stick must a third mass of 0.8 kg be hung for the meter stick to be in equilibrium? (All angles are 90 degrees)

A hand-held shopping basket 62.0 cm long has a 1.86 kg carton of milk at one end, and a 0.722 kg box of cereal at the other end. Where should a 1.70 kg container of orange juice be placed so that the basket balances at its center?