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    Question

    Two bodies of masses 3 kg and 5 kg are connected by a

    string and placed on a smooth horizontal surface. A force of 40 N is applied on the 5 kg block. What is the tension in the string?
    A 10 N Correct Answer Incorrect Answer
    B 20 N Correct Answer Incorrect Answer
    C 15 N Correct Answer Incorrect Answer
    D 25 N Correct Answer Incorrect Answer

    Solution

    Total mass = 8 kg, acceleration = 40/8 = 5 m/s2 Tension = mass of 3 kg block × acceleration = 3. 5 =15 N

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