Physics, asked by aayushmaanverma6937, 5 months ago

A 5 kg rolling rock has a velocity of 15m/s.What is the rock's kinetic energy?

Answers

Answered by anshikaatrish5
6

Correct answer for this question is 562.5 J

Answered by SteffiPaul
0

Therefore the Kinetic Energy of the rock is 562.5 J.

Given:

The mass of the rock = m = 5 kg

Velocity of the rock = v = 15  m/s

To Find:

The Kinetic Energy of the rock.

Solution:

The given question can be solved easily as shown below.

Given that,

The mass of the rock = m = 5 kg

Velocity of the rock = v = 15  m/s

Kinetic Energy of an object = KE = ( 1/2 ) mv²

Substituting the given values in the equation,

⇒ Kinetic Energy of the rock = ( 1/2 ) × 5 × 15²

⇒ Kinetic Energy of the rock = 2.5 × 225 = 562.5

Therefore the Kinetic Energy of the rock is 562.5 J.

#SPJ3

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