a car covers a distance of 5km in 20min. find the velocity of the car in km /min, m/s, m/min, km /hr
Answers
Distance / Displacement =5 km
Time taken =20 mins
the velocity (km/min)=5/20 km/min=0.25
the velocity (m/sec)=5*1000/20*60 m/sec=4.166666.......
the velocity (m/min)=5*1000/20 m/min=250
the velocity (km/hr)=5/(20/60)=15
therefore, the velocities are 0.25 km/min, 4.166....m/sec, 250 m/min, 15 km /hr.
Step 1, Given data
Distance = 5 km = 5000 m
Time = 20 min = 1200 sec =
1
3
h
Step 2, Speed in km/min
We know,
S
p
e
e
d
=
D
i
s
t
a
n
c
e
T
i
m
e
Putting all the values
S
p
e
e
d
=
5
20
=
1
4
km/min
Step 3, Speed in m/s
We know,
S
p
e
e
d
=
D
i
s
t
a
n
c
e
T
i
m
e
Putting all the values
S
p
e
e
d
=
5000
1200
=
4.16
m/s
Step 4, Speed in m/min
We know,
S
p
e
e
d
=
D
i
s
t
a
n
c
e
T
i
m
e
Putting all the values
S
p
e
e
d
=
5000
20
=
250
m/min
Step 5, Speed in km/h
We know,
S
p
e
e
d
=
D
i
s
t
a
n
c
e
T
i
m
e
Putting all the values
S
p
e
e
d
=
5
1
3
=
15
km/h
the velocities are
0.25 km/min,
4.166....m/sec,
250 m/min,
15 km/hr.