Question

An object covers 25m in 15s. Calculate the speed of the object in m/s, km/h, km/s, km/min. with explanation

Answer 1

Answer:

Correct option is

C

66.7 m/s

Time for first 10 km,

t

1

=

100

10×10

3

=100 sec.

Time for last 10 km,

t

2

=

50

10×10

3

=200 sec.

Total time =100+200=300 sec.

Total distance, =10+10=20 km

Average speed =

300

20000

=66.7 m/s

Answer 2

$\huge \sf {\orange {\underline {\pink{\underline {♡A᭄ɴsᴡᴇʀ࿐ \ :- }}}}}$

m/s 25/15 = 5/3 m/ sec

km /sec 0.025/3= 25/3000 km/sec

km/min 0.025/0.05= 25/50 =0.5km/min