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
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2
Answer:
I think it would be 20N if its acceleration is 1m/s²
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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
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