GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which object has the greatest Kinetic Energy?
A
2 kg rock traveling at 1 m/s
B
3 kg wagon traveling at 1 m/s
C
1 kg cannon ball traveling at 1 m/s
D
2.5 kg gallon of water sliding at 1 m/s
Explanation: 

Detailed explanation-1: -What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second? KE= ½ m v2 = ½ (3kg) (2 m/s)2 = 6 Joules 8.

Detailed explanation-2: -Question: Which object has larger kinetic energy: a 500-kg object moving with a speed of 40 m/s or 1000-kg object moving at 20 m/s? The answer is 500kg object moving at 40m/s I need to know how to show work for this.

There is 1 question to complete.