Question

PLZZ solve this . Hope u understand my handwriting​

Answer 1

Answer:

Given, m=100g=0.1kg

v=20m/s

K.E=1/2mv^2

=1/2*1/10*20*20

=20J

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Answer 2

Answer:

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Kinetic energy =

$1 \div 2 \times mv ^{2}$

so, the mass of ball = 100 gm = 1/10 kg.

velocity of ball = 20m/s.

so, k.E =

$1 \div 2 \times 1 \div 10 \times 20 \times 20$

= 20 joule. ( ans).

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