Question

A body travels at rate of 6 m/s for 5 seconds and 3 m/s for 10 second find total distance and average speed 1

Answer 1

Case 1

v=u=6m/s

t=5

a=0

s=?

s=ut+1/2(a)(t)(t)

a=0

=>s=30m

Case 2

a=0

u=3

t=10

=>s=ut

=> s= 30

therefore,

total distance is 30+ 30

=60

total time taken=

5+10

=15

average speed= total distance/ total time

=>60/15

=4m/s

Hope this helps