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Average and Instaneous Power

A flat car is...

Question

A flat car is given a constant acceleration a₀ = 2 m/s². A cable is connected to a block A of mass 40 kg as shown. Neglect the friction between floor, car wheels and mass of pulley. The co-efficient of friction between block and floor of car is $μ = 0.5$ . The tension in the cable is:

A

160 N

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B

200 N

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C

260 N

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D

360 N

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Solution

The correct option is D 360 N
T-f=40(a)

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