A body starts to slide down on a horizontal surface with initial velocity 5ms^-1 die to friction it's velocity decreases at 0.5m/s^-2 how much time will it take for the body to start?
Answers
Answered by
1
u = 5m/s
v = 0
a = -0.5m/s²
We have,
v = u + at
0 = 5 + (-0.5)t
0.5t = 5
t = 10 sec
Answered by
7
GIVEN:
- Initial velocity, u = 0.5 m/s.
- Final velocity, v = 0.
- Acceleration, a = 0.05 m/s^2.
TO FIND:-
- Time will take to start.
UNDERSTANDING THE CONCEPT:-
According to the given question, we know the initial velocity, final velocity and acceleration. So from this we can use
v = u + at for finding the time.
ANSWER:-
v = u + at
0 = 0.5 - 0.05 x t
0.05 x t = 0.5
t = 0.5/0.05 = 10 sec.
Thus the body will take 10 seconds to stop.
SOME BASIC INFORMATION:
- Velocity is the change in position in per unit time.
- Acceleration is change in velocity.
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