A car travelling at a speed of 30 km h⁻¹ is brought to a halt in
8 m by applying brakes. If the same car is travelling at 60 km
h⁻¹, it can be brought to a halt with the same braking power
in
(a) 32 m (b) 24 m
(c) 16 m (d) 8 cm
Answers
Answered by
8
Answer:
24 m is your answer
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Answered by
4
Answer:
The Answer is 16 m/sec.
Explanation:
case 1
speed=30 km/hr=30 ×5/18 m/sec=(25/3)m/sec
distance= 8m
time= distance/speed
=8m÷25/3 m/sec
=24/25 sec
case 2
speed=60 km/hr=60×5/18m/sec=( 50/3 )m/sec
time=24/25 sec
distance= speed×time
={(50/3)×(24/25)}m
=16 m
(the same question is in my book and the answer is 16. so, I'm 100% sure of this answer being correct).
hope it helps.
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