Question

Each wheel of a car is of diameter . How many complete revolutions does each wheel make in when the car is travelling at a speed of km per hour. 

A

B


C

D

None of these

Medium

Solution

verified
Verified by Toppr
Correct option is C)

Given,
speed of the car is
Therefore,
    Distance travelled by the car in
=>Distance travelled by the car in
                                                                   
                                                                    
Diameter of car wheel=
Therefore,
radius of car wheel=
                              =
                              =
Therefore,
Circumference of car wheel=
                                            =
                                            =
Therefore,
Number of revolution made by the wheels in minutes=

                        =

                        =
                        = revolutions.

Was this answer helpful?

upvote 0
downvote0