The position of a particle moving along the x-axis is give by x(t) = 4.0 2.0t m. (a) At what time does the particle cros the origin? (b) What is the displacement of the particl between t = 3.0 s and t = 6.0 s?
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- a particle starts from rest along a straight line. Sometime t later it is found to be 450 M away from starting point and moving with speed of 15m/s. Assuming constant acceleration, caculate particle's acceleration and find time t.An accelerating Cheetah reaches a velocity of 25 m/s in 4.5s after which it immediately begins to slow down. What is its acceleration and what is its effective striking range (ie., what distance does it cover)?Suppose an object moves along a line at 15 m/s, for 0 ≤ t ≤ 2,and at 25 m/s, for 2 ≤ t ≤ 5, where t is measured in seconds.Sketch the graph of the velocity function and find the displacementof the object for 0 ≤ t ≤ 5.
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