for how long should a force of 10n act on a body of 20kg so that it acquire a velocity of 100m/s
Answers
Answered by
2
50 seconds
Because f=ma
We get a=2 and v=u+at
Then 100=0+1/2t
t=50sec
Answered by
2
Given,
Force applied, F = 10N
Mass of the body, M = 20kg
We know,
F = ma
Where, F = 10 N and m = 20 kg
So, a = 10/20 = 0.5 m/s²
Since, the force is acting constantly over the body, the acceleration is uniform; the equations of motion can be applied:
v = u + at
Where v = 100 m/sec, a = 0.5 m/s2 and u = 0 (rest).
So, t = v/a = 100/0.5 = 200 seconds.
Force applied, F = 10N
Mass of the body, M = 20kg
We know,
F = ma
Where, F = 10 N and m = 20 kg
So, a = 10/20 = 0.5 m/s²
Since, the force is acting constantly over the body, the acceleration is uniform; the equations of motion can be applied:
v = u + at
Where v = 100 m/sec, a = 0.5 m/s2 and u = 0 (rest).
So, t = v/a = 100/0.5 = 200 seconds.
Similar questions