Question

If the replacement set belongs to Integer then the solution set of x ≥ -7 is _________​

Answer 1

21. (i) What is kinetic energy.

(ii) Derive a formula for kinetic energy.

(iii) An object of mass 15 Kg is moving with a uniform velocity of 4 m/sec What is

Kinetic energy possessed by the object?

OR

(i) State the law of conservation of energy.

(ii) Name the type of energy possessed by stretched slinky, flowing water, stretche

rubber band and a speeding car.

(iii) An object of mass 50 kg is raised to a height of 600 cm above the ground. What is its

potential energy? (g = 10m/s2)

SECTION-E

nium chloride and common salt?

any one ans