To throw the discus, the thrower holds it with a fully outstretched arm. Starting from rest, he begins to turn with a constant angular acceleration, releasing the discus after making one complete revolution. The diameter of the circle in which the discus moves is about 1.8 m Part A If the thrower takes 0.90 s to complete one revolution, starting...
QUESTION 2: uniform circular motion Question 2 (uniform circular motion) A rollercoaster with you in it is at the bottom of dive. Let's say you are 50 kg in mass. The coaster is traveling at 30 m/s and the curve is 8 meters in radius. a. What is the centripetal acceleration on you at the bottom of the curve? b....
A golf ball (50 g) hit by a club is accelerated from rest to 50 m/s in 2.50 ms. What are the magnitudes of the impulse delivered to the ball and the average force acting on the ball? Impulse = Average Force = A disk of radius 10.0 cm spins about an axis through its center at a constant 5.0...
A car starts from rest, and begins accelerating at a constant rate a1. It accelerates at this rate for a distance of 57.8m from its starting point, and then immediately begins to decelerate at a different constant rate a2, eventually coming to rest again after traveling an additional distance of 73.8m from where it began decelerating. The entire trip from...
A particle of mass m slides down a fixed, frictionless sphere of radius R. starting from rest at the top . The centripetal acceleration of the mass ii. The tangential acceleration of the mass degrees b. Determine the value of 8 at which the particle leaves the sphere.
A 0.8 m diameter wheel accelerates uniformly from 100 rpm to 160 rpm im 10 seconds. determind (a) angular acceleration (b) the number of turns it rotates in this time (c) the angular velocity of the wheel 2.0 seconds after it has started accelerating (d) the centripetal acceleration at this moment A 0.8-m-diameter wheel accelerates uniformly from 100 rpm to...
17. What will happen if to a ball on a string if the string brea what speed? l happen if to a ball on a string if the string breaks? What direction will it move, and al erseus want to attack a cyclops with a rock and sling. He uses a.8-kg rock to a string so that he can swing...
Q3) A car moving with a constant speed of 35.0 m/s completes one lap around a circular track of radius 250 m. What is the magnitude of the centripetal acceleration of the car? When the car is at the point 'A', what is its direction of centripetal acceleration (show by making an arrow on the figure)
A boy is traveling 30 m/s on a scooter. He slows uniformly to a speed of 10 m/s in 5.0 seconds. What is the scooter?s acceleration?
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.300 rev/s . The magnitude of the angular acceleration is 0.883 rev/s2 . Both the the angular velocity and angular accleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.790 m . Compute the fan's angular velocity magnitude...