If two ends of a spring balance are pulled each by a force of 10 kg. wt. What will be the reading of the balance?

What is a spring balance?

A stretching force of 1 N is applied at one end of a spring balance and an equal sretching force is applied at the other end at the same time. The reading on the balance will be

A spring balance has a scale that readsfrom 0 to 50 kg. The length of the scale is 20 cm. A body suspended from this balance, when displaced and released, oscillates with a period of 0.6 s. What is the weight of the body ?

A wire of length L and radius r is clalmped rigidly at one end. When the other end of the wire is pulled by force f, its length increaes by l. Another wire of the same material of length 2 L and radius 2 r, is pulled by a force 2 f. Find the increase in length of this wire.