Question

A lift of mass 1000 kg is moving with acceleration
of 1 m/s2 in upward direction, then the tension
developed in string which is connected to lift is
(1) 9800 N
(2) 10,800 N
(3) 11,000 N (4) 10,000

Answer 1

see the solution

so answer is (3)11000N

Hope you understand

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Answer 2

Answer:

The tension developed in the string which is connected to the lift is 10,800 N.

Explanation:

Given: Mass, m = 1000 kg

                     g = 9.8 m/s²

To find: Tension in the string developed.

Solution: Let us draw the free body diagram of the above given case. (Refer to the attached image)

From the attached image, we conclude:

                     T - mg = ma ( as per Newtonian laws )

                     T = mg + ma

                     T = m (g +a)

                     T = 1000 ( 9.8 + 1 )

                    T = 1000 × 10.8

                   T = 10,800 N

Hence, the tension developed in the string which is connected to the lift is 10,800 N.