A race car starts from rest on a circular track. The car increases its speed at a constant rate at as it goes once around the track. Find the angle that the total accelera- tion of the car makes—with the radius connecting the center of the track and the car—at the moment the car completes the circle.

Because we are on the surface of the Earth and the Earth is rotating, we expe- rience a centripetal acceleration towards the axis about which we rotate. (a) What is the acceleration that you would feel from the circular motion due to the rotation of the Earth if you were at the equator? Feel free to look up the radius of the Earth.

Check Your Understanding A flywheel has a radius of 20.0 cm What is the speed of a point on the edge of the flywheel if it experiences a centripetal acceleration of 900.0 cm/s² ?

In a vertical dive, a peregrine falcon can accelerate at 0.6 times the free-fall acceleration g (that is, at 0.6⁢g) in reaching a speed of about 105 m/s. If a falcon pulls out of a dive into a circular arc at this speed and can sustain a radial acceleration of 0.6⁢g, what is the minimum radius R of the turn?

1) A stopwatch starts while race car travels at 9 m/s from the pit area and accelerates at a uniform rate to a speed of 33 m/s in 7 s moving on a circular track of radius 527 m. Assuming constant tangential acceleration, find (a) the tangential acceleration, and (b) the radial acceleration,at the instant when the speed is v = 8 Once you have both of those ... find the magnitude of a at any moment A= 2) A stopwatch starts while race car travels at 9 m/s from the pit area and accelerates at a uniform rate to a speed of 28 m/s in 15 s moving on a circular track of radius 510 m. Assuming constant tangential acceleration, find (a) the tangential acceleration, and (b) the radial acceleration,at the instant when the speed is v = 14 Once you have both of those ... find the magnitude of a at any moment A=

Atten A toy shop owner is designing a display for his store window. m. bear He would like a snowman on a sled to travel in a circular path d - L of radius d on an icy (frictionless) surface. To make this happen, he attaches a string to the sled, passes the string through the center of a vertical pole, and anchors the other end of the string to a teddy bear, a distance L from the pole, on a different level. He will give the sled a little push to get it m started traveling at a constant speed v. Since he might want to sell the bear later, he will not glue it down and has to rely on the friction between the bear and the surface, which has a coefficient of static friction µ. If the mass of the snowman and sled combined is m, what is the minimum mass of the bear mpear for which this motion is possible? Express your answer in terms of m, L, d, µ, v, and g (the acceleration due to gravity). Mbear 2

An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1810 × 103 seconds (about 21 days) on average to complete one nearly circular revolution around the unnamed planet. If the distance from the center of the moon to the surface of the planet is 255.0 × 106 m and the planet has a radius of 3.30 × 106 m, calculate the moon's radial acceleration ?c.

Y ou are riding a galloping horse around a circular track at a constant speed. Does the horse's velocity change? Briefly explain why or why not.

A disk-shaped space station 200 m in diameter spins uniformly about an axis perpendicular to the plane of the disk through the center.hat should the period  (the time to complete one revolution) of this disk be so that centripetal acceleration of all points on its rim is g=9.8m/s2. hint first find the speed then from speed and radius find the period.

A race car starts from rest on a circular track. The car increases its speed at a constant rate at as it goes 4.25 times around the track. Find the angle that the total acceleration of the car makes with the radius connecting the center of the track and the car at the moment the car completes its trip of 4.25 times around the circle