1. Centripetal Acceleration

2. QUICK WRITE
What is the resultant force of the two concurrent forces 57 N and 65 N acting 450 on an object?
Find the horizontal and vertical component of a 60 N force at an angle 350 to the horizontal.
How far will an object be if it was shot at a speed of 30 m/s at angle of 380 ?

3. Centripetal Acceleration
REVIEW ?
MOTION
One Dimension
Two Dimension
Horizontal Motion
Vector
Projectile
Vertical Motion
Centripetal Acceleration

4. Centripetal Acceleration
Property of the motion of an object traveling in a circular path. Centripetal describes the force on the object, directed toward the centre of the circle, which causes a constant change in the object's direction and thus its acceleration. The magnitude of centripetal acceleration a is equal to the square of the object's velocity v along the curved path divided by the object's distance r from the centre of the circle, or a = v2/r.

7. Let’s put Math on it…
Racing on a flat track, a car going 32 m/s rounds a curve 56 m in radius, what is the car’s centripetal acceleration.

8. A runner is moving at a speed of 8
A runner is moving at a speed of 8.8 m/s rounds a bend with a radius of 25 m, what is the centripetal acceleration of the runner.

9. According to the Guinness Book of World Records, the highest rotary speed ever attained was 2010 m/s. the rotating rod was 15.3 cm long. Assume that the quoted speed is that of the end of the rod, what is the centripetal acceleration of the rod.