Question

A body covers 3km in 10min 6km in 20min and 10km in 60min is the motion of body uniform

Answer 1

Total distance covered by car = 60 km

And, total time taken in journey t=t

1

+t

2

t=

v

1

s

1

+

v

2

s

2

=

60

30

+

40

30

=

4

5

h

Therefore, Average Speed=

Total Time

Total Distance

=

4

5

h

60km

=48 km/h