8. A car accelerates uniformly at 2m/s² for 3minutes, what is the velocity of the car in m/s a) 560 (b) 160 (c) 360 (d) 469
To find the velocity of the car, we need to consider the equation for uniformly accelerated motion:
v = u + at
Where:
v = final velocity
u = initial velocity
a = acceleration
t = time
Given:
u = 0 m/s (initial velocity)
a = 2 m/s² (acceleration)
t = 3 minutes = 3 × 60 = 180 seconds
Plug in the values:
v = 0 + 2 × 180
v = 0 + 360
v = 360 m/s
Therefore, the velocity of the car is 360 m/s. The correct answer is (c) 360.