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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 1 > Chapter 5 - Laws of Motion > A massless spring balance is attached to 2 kg trolley and is used to pull the trolley along a flat smooth surface as shown in the figure. The reading on the spring balance is 10 kg during the motion. The acceleration of the trolley is (Use g=9.8 ms^−2)

A massless spring balance is attached to 2 kg trolley and is used to pull the trolley along a flat smooth surface as shown in the figure. The reading on the spring balance is 10 kg during the motion. The acceleration of the trolley is (Use g=9.8 ms^−2)

A mass M is suspended by a rope from a rigid support at A as shown in figure. Another rope is tied at the end B and it is pulled horizontally with a force. If the rope AB makes an angle θ with the vertical in equilibrium then the tension in the string AB is