a car travelling at 20 km/hr speeds upto 60 km/hr in 6 seconds.what is its acceleration?1.85 m/sec²
Answers
Answered by
2
hey dear
here is your answer
initial velocity = 20 km/hr = 5.55m/s
final velocity = 60km/hr = 16.6m/s
time = 6 seconds
acceleration = ?
by the first equation of motion
v = u+at
16.6 = 5.55+6a
6a = 11.05
a = 11.05/6 = 1.84m/s^2
here is your answer
initial velocity = 20 km/hr = 5.55m/s
final velocity = 60km/hr = 16.6m/s
time = 6 seconds
acceleration = ?
by the first equation of motion
v = u+at
16.6 = 5.55+6a
6a = 11.05
a = 11.05/6 = 1.84m/s^2
Answered by
2
hello friend!
we know that 20km/hr = 100/18m/s
also 60km/hr = 300/18 m/s
as we know acceleration =v-u/t
= { 300/18 - 100/18}/6
= 200/18 ÷6
= 200/108
which is 1.85185185.......
hence your answer is correct
we know that 20km/hr = 100/18m/s
also 60km/hr = 300/18 m/s
as we know acceleration =v-u/t
= { 300/18 - 100/18}/6
= 200/18 ÷6
= 200/108
which is 1.85185185.......
hence your answer is correct
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