Question

calculate the force required if object has a mass of 20 kg traveling with a velocity of 3 m/s in a time of 3 m​

Answer 1

Answer:

I think it would be 20N if its acceleration is 1m/s²

Answer 2

Answer :

Mass of object = 20kg

Initial velocity = zero

Final velocity = 3 m/s

Distance travelled = 3m

We have to find magnitude of required force$.$

★ In order to find force first we need to find acceleration of object.

Third equation of kinematics is given by

→ v² - u² = 2as

→ 3² - 0² = 2a(3)

→ 9 = 6a

→ a = 9/6

→ a = 1.5 m/s²

★ As per newton's second law of motion, force is measured as the product of mass and acceleration.

→ F = m a

→ F = 20 × 1.5

→ F = 30 N