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A block of mass 0.2 kg is suspended from the ceiling by a light string.A second block of mass 0.3 kg is suspended from the first block through another string. Find the tensions in the two strings.

A block of mass 0.2 kg is suspended from the ceiling by a light string.A second block of mass 0.3 kg is suspended from the first block through another string. Find the tensions in the two strings.
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In a TV picture tube electrons are ejected from the cathode with negligible speed and reach a velocity of 〖5∗10〗^6m/s in travelling 1cm. Assuming straight line motion, find the constant force exerted on the electron. The mass of electron is 〖9.1∗10〗^(−31)Kg.

In a TV picture tube electrons are ejected from the cathode with negligible speed and reach a velocity of 〖5∗10〗^6m/s in travelling  1cm. Assuming straight line motion, find the constant force exerted on the electron. The mass of electron is 〖9.1∗10〗^(−31)Kg.
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A car moving at 40 km/h is to be stopped by applying brakes in the next 4.0 m. If the car weighs 2000 kg, what average force must be applied on it?

A car moving at 40 km/h is to be stopped by applying brakes in the next 4.0 m. If the car weighs 2000 kg, what average force must be applied on it?
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A block of mass 2 kg placed on a long frictionless horizontal table is pulled horizontally by a constant force F. It is found to move 10 m in first two seconds. Find the magnitude of F.

A block of mass 2 kg placed on a long frictionless horizontal table is  pulled horizontally by a constant force F. It is found to move 10 m in first two seconds. Find the magnitude of F.
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