Solve the following problems showing your COMPLETE SOLUTION:

1.) Calculate the momentum of a 1100 kg car with a velocity of 30m/s. Required:
Given:
Solution:

2.) A track athlete throws a 2.5 kg discus into a field with a velocity of 20 m/s going to south. What is the momentum of the discus? Required: Given:
Solution:

3.) How much kinetic energy does a 0.18 kg ball thrown at 26 m/s have? Required:
Given:
Solution:

4) How much gravitational potential energy does a 28 kg boulder have when 32 meters off the ground? Required:
Given:
Solution:

2.Momentum responsible for the vertical velocity of the discus is obtained during the second half of the second single-support phase and the first half of the delivery phase. Rotary momentum is stored in the thrower's body and is expressed as rotation of the body.

3.Speed of the object (v) = 2 m/s. Kinetic Energy (K.E) = ½ mv2. = ½ (10)(2)2 ⇒ 20 joules. The kinetic energy of the object is 20 J.

Explanation:

correct me if im wrong po^^