SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Joules is
A
kinetic energy
B
momentum
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -joule: the SI unit of energy. One joule is the kinetic energy of an object with a mass of 2 kilograms moving with a velocity of one meter per second. 1 J = 1 kg m2 s-2. 4.184 J = 1 cal.

Detailed explanation-2: -In classical mechanics, kinetic energy (KE) is equal to half of an object’s mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s2.

Detailed explanation-3: -Kinetic energy is measured in the same units as all types of energy: Joules (J).

There is 1 question to complete.