Question

A body of mass 500 g moving
with a speed of 10 m/s. A force acts
on it which makes it to move with a
speed of 20 m/s. What is the change
in kinetic energy?​

Answer 1

Answer:

• 75 J

Explanation:

Given

• m = 500 g
• m = 0.5 Kg
• u = 10 m/s
• v = 20 m/s

To find

• Increase in kinetic energy

Solution

↪ Increase in K.E :

• 1/2 m (v² - u²)
• 1/2 × 0.5 (20² - 10²)
• 1/2 × 0.5 (300)
• 0.25 × 300
• 75

∴ 75 J is the increase in K.E.

Answer 2

Explanation:

Mark me as a brainliest plz