Question

a body has weight 20N how much force is required to move it vertically upwards with an acceleration of 2m/s​

Answer 1

Answer:

Given :-

• Weight = 20 N
• Acceleration = 2 m/s

To Find :-

Force applied

Solution :-

As we know that

F = ma

F is the Force applied

M is the Mass

A is the Acceleration

F = 20 × 2

F = 40 N

Hence :-

Force applied is 40 N

Know More :-

First equation of motion

v = u + at

Second equation of motion

s = ut + ½at²

Third Equation of motion

v² - u² = 2as

Answer 2

Answer:

The mass of the body is obtained by dividing the weight by acceleration due to gravity 'g' approximately taken as 10 m/sec/sec. Mass = 20 /10 ≈ 2 kg. The upward force must offset the weight acting downwards and additionally provide a force = 2 *2 = 4 N.

Step-by-step explanation:

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