Question

The change in velocity of motor bike is 54 km/h in one minute. Then its acceleration in (i) m/s? (ii) km/h^2 are

Please say with step

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Answer 1

Correct question:-

The change in velocity of a motorbike is 54km/h in one minute. Then it's acceleration in (i) m/s² (ii) km/h² are ?

Given:-

→ Change in velocity of the

motorbike = 54km/h

→ Time = 1 minute

To find:-

Acceleration in :- (i) m/s² (ii) km/h²

Solution:-

In m/s² :-

Firstly, let's convert the change in velocity from km/h to m/s.

=> 1 km/h = 5/18 m/s

=> 54km/h = 54×5/18

=> 15m/s

Time :-

=> 1 min = 60s

Acceleration = Change in velocity/Time

= 15/60

= 0.25 m/s²

In km/h² :-

Time :-

=> 1 min = 1/60 hour

Acceleration = Change in velocity/Time

= 54/[1/60]

= 54×60

= 3240 km/h²

_____________________________

Thus, the required accelerations of the motorbike are :-

(i) 0.25 m/s²

(ii) 3240 km/h²