A car increases its speed from 20km/h to 50km/h in 10 seconds. Find its acceleration.
Initial speed, u = 20km/h =
m/s = 5.5m/s
Final speed, v = 50km/h =
m/s = 13.8m/s
Acceleration, a = ? (to be calculated) And, Time t=10s V = u +at
13.8 = 5.5 + a x 10
10a = 13.8 - 5.5
10a = 8.3
a = 8.3/10
= 0.83m/s2
Thus, the acceleration is 0.83m/s2.
m/s = 5.5m/sFinal speed, v = 50km/h =
m/s = 13.8m/sAcceleration, a = ? (to be calculated) And, Time t=10s V = u +at
13.8 = 5.5 + a x 10
10a = 13.8 - 5.5
10a = 8.3
a = 8.3/10
= 0.83m/s2
Thus, the acceleration is 0.83m/s2.
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