Andy has a remote-controlled car which he uses primarily to annoy the family cat. He has found that the cat’s annoyance is maximized for motion which can be parametrized as x(t) = 0.5t^3 – 3t, where x is in meters and t is in seconds. Calculate the position at t=3.1s in meters. Calculate the acceleration at t=2.3s (m/s2). At what time is the instantaneous velocity zero?

s = d/t

Explanation:

s= speed

d = distance traveled

t = time elapsed

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement