Question

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

Answer 1

Answer:

The force required be F =

Explanation:

F = mass× acceleration

them mass = 20/9.8 = 20/10 = 2 kg

then

force required to cancel out the weight = 20N

then after force for 2m/s acceleration = 2×2 = 4 N

then total force needed = F = 20+4 = 24 N

HOPE IT HELPS.....

Answer 2

Question-

A body has weight 20N. How much force is required to move it vertically upward with an acceleration of 2 m/s².

Answer-

Mass = 20N/10 = 2kg (Gravity acceleration = 10 m/s² approx)

Acceleration = 2 m/s²

Force = ?

We know that

Force = Mass × Acceleration

Substitute the values,

Force = Mass × Acceleration

⇒ Force = 2kg × 2 m/s²

⇒ Force needed to lift the body = 4N