Question #26500

1.Below is the description of gthe position in metres of the puck as it moves in the x plane where time is in seconds ,

X=t^3+2t^2+t

(a)How long did the puck move after 2 seconds?

(b)What is the velocity of the puck at 2 seconds?

(c)What is the acceleration of the puck at 2 seconds?

2.An object moves in a uniform circural motion with centripetal acceleration of 25 m/s^2 ,if the diameter of the circle is 70m,

(a)Find the velocity at which the object is moving.

(b)Find the revolution period of the motion.

X=t^3+2t^2+t

(a)How long did the puck move after 2 seconds?

(b)What is the velocity of the puck at 2 seconds?

(c)What is the acceleration of the puck at 2 seconds?

2.An object moves in a uniform circural motion with centripetal acceleration of 25 m/s^2 ,if the diameter of the circle is 70m,

(a)Find the velocity at which the object is moving.

(b)Find the revolution period of the motion.

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