Work done by a spring force is...

Work done by a spring force is

Always negative

Always positive

Always zero

May be positive, negative or zero

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A spring is stretched by distance x and then compressed to same distance from its original length. The work done by the spring force is (k=spring constant)

Assertion : The work done by the spring force in a cyclic process is zero. Reason : Spring force is a conservative force.

Find the work done by the spring force as the bloc k is moved leftward from x_(1)=15mm to x_(z)=-10mm value of spring constant is 400

In the above question, find the work done by the spring force as the block is moved leftward from x_(1)=15mm to x_(z)=-10mm .Take spring constant as 400 N/m.

Consider a block connected to a light spring of spring constant 100Nm^(-1) . Now the block is displaced by applying a constant force F which gives zero resultant force when spring is stretched through 10 cm. Evaluate (i) Work done by the spring force when the block attains equilibrium. (ii) Net work done on the block when it attains maximum speed.

A spring of spring constasnt 50 N/m is compressed from its natural position through 1 cm. Find the work done by the work done by the spring force on the agency compressing the spring.

In the figure shown initial spring is in unstretched state and blocks are at rest. Now 100 N force is applied on block A and B as shown in figure. After same time velocity of 'a' becomes 2 m//s and that of 'B' 4 m//s and block A displaced by amount 10 cm and spring is spring is streched by amount 30 cm . Then work done by spring force on A will be:

a block of mass 0.1 kg attached to a spring of spring constant 400 N/m pulled horizontally from x=0 to x_1 =10 mm. Find the work done by the spring force

AAKASH INSTITUTE ENGLISH-MOCK TEST 8-Example

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