You need more details.
The final velocity could be 0
However, you need to know the initial velocity, and the braking acceleration, and perhaps other acceleration/deceleration factors to know the true answer.
10m/s
Acceleration = Change in Velocity / Change in Time a = (Final Velocity - Initial Velocity) / (Final Time - Initial Time) = (55-0)/(5-0) = 55/5 a = 11 m/s^2
Well, (final velocity) = (initial velocity) + (acceleration x time)
The final velocity is (the initial velocity) plus (the acceleration multiplied by the time).
Velocity = distance divided by time / Velocity = average speed over time / Acceleration = (change of) velocity divided by time elapsed Change in velocity = final velocity "minus" initial velocity divided by time elapsed
The braking time is 2 - 1.5s = 0.5s. The final velocity, if the object comes to a stop, is 0m/s.
10m/s
The answer is A. 10m/s *:)
Acceleration occurs when velocity changes over time. The formula for it is as follows: a = (Vf - Vi) / t a: acceleration (meters/seconds2) Vf: Final velocity (meters/seconds) Vi: Initial Velocity (meters/seconds) t: Time (seconds)
Using the equation of motion v = u + at. v-the final velocity, u - initial velocity a- acceleration and t-the time.
Final velocity = (Initial velocity) + (time)(acceleration)
the final velocity = initial velocity + acceleration x time; since acceleration is negative final velocity = 45 - 10x3 = 45 -30 = 15 mph
Acceleration = Change in Velocity / Change in Time a = (Final Velocity - Initial Velocity) / (Final Time - Initial Time) = (55-0)/(5-0) = 55/5 a = 11 m/s^2
It will depend upon the initial velocity of the body. If 'u' be the initial velocity of the body, then the final velocity will be: v = u + at (v = final velocity, a = acceleration, t = time) i.e., v=u+10*7 = (u + 70) m/sec. If u=0 (i.e the initial velocity be zero) then final velocity, v=70 m/sec.
Well, (final velocity) = (initial velocity) + (acceleration x time)
Final velocity = Initial velocity +(acceleration * time)
The final velocity is (the initial velocity) plus (the acceleration multiplied by the time).