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February 28, 2015

February 28, 2015

Posted by **Elliott** on Tuesday, May 14, 2013 at 3:16am.

(a) Find the times when the object is at rest.

(b) Find the acceleration at both of these times. Interpret the acceleration in

terms of the motion of the object, ie whether the object is increasing or

decreasing in speed and in which direction.

(c) If the object is at x=-1 m at t=1, find the position of the object at time t.

(d) Find the leftmost position of the object for all t 0.

- Calculus -
**Damon**, Tuesday, May 14, 2013 at 3:47ama)

when is v = 0?

(t-5)(t-2) = 0

t = 5 or 2

b)

a = 2 t - 7

put in t = 5 and t = 2

c)

x = (1/3) t^3 - (7/2) t^2 + 10 t + c

put in given point to find c

d)

when is x a minimum?

When v = 0

so put in t = 5 and t = 2 and find the lower x value

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