Question

an object moves through 100 m in 2 min and next 10 m in 3 min.Calculate its average speed

Answer 1

distance 1 = 100 m
distance 2 = 10 m
time 1 = 2 min = 2×60 = 120 s
time 2 = 3 min = 3×60 = 180 s

avg speed
= (100+10)/(120+180)
= 110/300
= 11/30 m/s

Answer 2

Heya,

Given,

Distance 1 = 100m

Distance 2 = 10m

Total distance covered = 110 m

Time taken 1 =2m = 120 seconds

Time taken 2 = 3m = 180 seconds

Total time taken = 300 seconds

Average speed= Total distance covered/ Total time taken

=110m/300 sec

= 11/30 m/s

Hope it helps u.....