Each wheel of a car is making 5 revolutions per second. If the diameter of a wheel is 84 cm, then the speed of the car in cm/sec would be :
A. 420 cm/sec
B. 264 cm/sec
C. 1000 cm/sec
D. 1320 cm/sec
Answer: Option D
Solution(By Examveda Team)
Circumference of the circle = 2πr= 2πr
= 2 × $$\frac{22}{7}$$ × 42
= 264 cm
Distance cover in 1 sec
= 264 × 5
= 1320 cm/sec
Related Questions on Speed Time and Distance
A. 48 min.
B. 60 min.
C. 42 min.
D. 62 min.
E. 66 min.
A. 262.4 km
B. 260 km
C. 283.33 km
D. 275 km
E. None of these
A. 4 hours
B. 4 hours 30 min.
C. 4 hours 45 min.
D. 5 hours
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