Question

The mass of a lift is 2000kg. When the tension in cable is 2800 N, the acceleration is
(A)14 m/s2 upwards
(B) 14 m/s2 downwards
(C) 4 m/s2 upwards
(D) 4 m/s2 downwards​

Answer 1

Answer:

The gravitational force in downward direction is 20000 N and the tension force in upward direction is 28000 N .

By newton's second law of motion

ΣF=ma

⇒T−mg=ma

a= T−mg/m

=4m/s^2

Explanation:

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