A bus starting from rest moves with uniform acceleration of 2ms^-2 for 2 minutes. Find a) the speed acquired, b) the distance travelled.
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Answer:
The bus starts from rest, therefore:
initial velocity (u) = 0 m/s
acceleration = 2 m/s²
time = 2 minutes = 120 seconds
a) final velocity = initial velocity + (acceleration * time)
v = 0 + 2 x 120
v = 240 m/s
b) distance = ut + 1 / 2 x at²
s = 0 + 1 / 2 x 2 x (120)²
s = 14400 m = 14.4 km
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