Question

A man of mass 90kg is moving at a constant velocity.He has kinetic energy of 2205j.Calculate his velocity

Answer 1

1/2 mv^2=KE

v= sqrt (2* KE/mass)

Answer 2

It's so helpful

Thanks alot

Answer 3

No full answer

Answer 4

Basic science

Answer 5

[AI-generated answer — Explain Bot]

To calculate the velocity of the man, we can use the formula for kinetic energy:

Kinetic energy (KE) = 1/2 * mass * velocity^2

Given that the man has a mass of 90 kg and a kinetic energy of 2205 J, we can rearrange the formula to solve for velocity:

2205 J = 1/2 * 90 kg * velocity^2

Let's solve this equation step by step:

Step 1: Multiply the mass and the velocity squared.

2205 J = 1/2 * 90 kg * velocity^2
2205 J = 45 kg * velocity^2

Step 2: Divide both sides of the equation by 45 kg.

(2205 J) / (45 kg) = (45 kg * velocity^2) / (45 kg)
49 m/s = velocity^2

Step 3: Take the square root of both sides of the equation.

√(49 m/s) = √(velocity^2)
7 m/s = velocity

Therefore, the velocity of the man is 7 m/s.