Which has a greater momentum and greater kinetic energy-a truck with a mass of 3530 kg moving at a speed of 21 m/s or a car with a mass of
1620 kg moving at a speed of 54 m/s? Answers below are given in the
form: greater momentum, greater kinetic energy.

the car has greater momentum.

the car has greater kinetic energy.

Explanation:

FOR MOMENTUM:

Momentum is given as the product of mass and velocity of an object:

where,

P = momentum

m = mass

v = velocity

For Truck:

For Car:

Therefore, car has greater momentum.

FOR KINETIC ENERGY:

Kinetic Energy is given as:

where,

K.E = Kinetic Energy

m = mass

v = velocity

For Truck:

For Car:

Therefore, car has greater kinetic energy.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )