8. Name any two applications of the "law of conservation of linear momentum".
9. A cyclist goes once round a circular track of diameter 105m in 5 minutes. Calculate his
speed.
Answers
8. Name any two applications of the "law of conservation of linear momentum"
ans:
One of the applications of conservation of momentum is the launching of rockets. The rocket fuel burns are pushed the exhaust gases downwards, and due to this, the rocket gets pushed upwards.
9. A cyclist goes once round a circular track of diameter 105m in 5 minutes. Calculate his speed.
ans:
To calculate the speed, you have to make use of formula and it give diameter and speed
given,
diameter is 105m
radius: 52.5m
circumference will be 2×22=44
=44/7
=6.2
=6.2× 52.5
=330m
time is five minute
5×60= 3000seconds
formula :
speed=distance based on time
= 330/300
=1.1m/s
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Explanation:
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