NEET Class neet Answered
For a particle moving along a straight line, its position (x) is given by x = (t – sint), where t is time. The ratio of maximum speed to its speed at 
is
is
Asked by vanshikaagarwal777 | 31 Mar, 2020, 04:01: PM
Expert Answer
position x(t) = t - sin(t)
speed v(t) = dx(t)/dt = 1 - cos(t)
speed will be maximum when t = n π , where n = 1, 3, 5, etc
maximum speed vmax = 1 - (-1) = 2
speed at t = π/2 , v = 1 - 0 = 1
ratio of speed at t = π/2 to maximum speed = 1/2
Answered by Thiyagarajan K | 31 Mar, 2020, 05:44: PM
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