A.40
B.45
C.50
D.60
Related Mcqs:
- A car travelling at a speed of 60 km/hour is braked and comes to rest 6 seconds after the brakes are applied. The minimum coefficient of driction between the wheels and the road would be
- A grinding wheel is rotating at 3000 rpm. When the switch is turned off the wheel stops in 10 seconds. The uniform deceleration of the wheel was
- A car is travelling at 90 km/hour on a rough road where the coefficient of friction between the road and the tyre is 0.5. The distance the car will skid before stopping when the brakes are jammed suddenly would be
- In automobile, probable cause for ineffective brakes could be
- In an automobile the probable cause for dragging brakes could be
- An automobile weighing 2800 lb and travelling at 30 miles/hr, hits a depression in the road which has a radius of curvature of 50 ft. What is the total force to which springs are subjected.
- A wheel 8 mts in diameter coasts to rest from a speed of 800 rpm in 10 minutes. Its angular deceleration is
- For car speed upto 100 kmph the mean deceleration in m/s2 taken as
- In land plants the gaseous exchange takes place through the open stomata, in submerged hydrophytes it takes place/through:
- Noisy brakes indicate
