Question

Two objects were lifted by a machine.One object had a mass of 2 kilograms and was lifted at a speed of 2 m/sec.The other had a mass of 4 kilograms and was lifted at a rate of 3 m/sec

Answer 1

Answer:

While lifting two object the machine needs the different momentum for different mass object.

Explanation:

• Momentum is the quantity of motion contained in an object. Usually it is measured by the product of mass and velocity.
• Momentum of first mass = 2 kg × 2 m/sec = 4 kg m/sec
• Momentum of second mass = 4 kg × 3 m/sec = 12 kg m/sec
• So the machine requires higher mass in motion for second object ( i.e. momentum) than the first one while lifting.