Question

Q.11) (i)Name the type of energy possessed by:

(a) Flowing water (b) A stretched rubber band

(ii) An object of mass 15 kg is moving with a uniform velocity of

4m/s. What is the kinetic energy possessed by the object.​

Answer 1

(a) kinetic energy

b) potential energy

kinetic energy possesed by the object

$= \frac{1}{2} mv {}^{2} \\ = \frac{1}{2} \times 15 \times 4$

30joules

Answer 2

Answer:

a. kinetic energy

b. elastic potential energy

ii. kinetic energy possessed by the object = 1/2 * (mass of object ) *(speed of object) ²

given : mass = 15 kg

speed = 4m/s

kinetic energy possessed =1/2*15*(4)²

1/2*15*16

= 15*8 =120 J

Explanation:

hope it helps you