A fast pitch softball player does a "windmill" pitch moving her hand through a vertical circular...
A fast pitch softball player does a "windmill" pitch moving her hand through a vertical circular arc to pitch a ball at 66mph. The 0.18 kg ball is 52 cmfrom the pivot point at her shoulder.
part a)
Just before the ball leaves her hand, what is its centripetal acceleration?
Express your answer in meters per second squared
part B)
At the lowest point of the circle, the ball has reached its maximum speed. What is the magnitude of the force her hand exerts on the ball at this point?
Express your answer in newtons.
part c) At the lowest point of the circle, the ball has reached its maximum speed. What is the direction of the force her hand exerts on the ball at this point?
Homework Answers
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A fast pitch softball player does a "windmill" pitch moving her
hand through a vertical circular...
on 29 of 31> Suppose a fast-pitch softball player does a windmill pitch, moving her hand...
on 29 of 31> Suppose a fast-pitch softball player does a windmill pitch, moving her hand through a circular arc with her arm straight. She releases the ball at a speed of 29.4 m/s (about 65.8 mph). Just before the ball leaves her hand, the ball's radial acceleration is 4230 m/s. What is the length of her arm from the pivot point at her shoulder? length TOOLS
Constants I Peiodic Table Y Part A fast pitch softball player does windmil ptch moving her...
Constants I Peiodic Table Y Part A fast pitch softball player does windmil ptch moving her hand through a vertical circular anc to pitch a bail at 75mph. The 0.20 kg ballis 52 cn from the pivot point at her shoulder Express your answer in meters per second squared m/ Submit Request Answer Part B Al the lowest point of the clecle, the ball has reached its maximum speed. What is the magnitude of the force her hand exerts on...
In fast-pitch softball, a pitcher swings her arm from straight overhead in a circle, releasing the...
In fast-pitch softball, a pitcher swings her arm from straight overhead in a circle, releasing the 0.185 kg ball at the bottom of the swing. If a pitcher's arm has a length of 1.10 m and mass of 9.96 kg, and the ball goes from initially at rest to a tangential speed of 29.4 m/s before release, what average torque must the pitcher apply to the ball? Model the pitcher's arm as a uniform thin rod swung about one end,...
In softball, the pitcher throws underhand with the arm fully extended (straight at the elbow)
In softball, the pitcher throws underhand with the arm fully extended (straight at the elbow). In a fastpitch the ball, of mass m=0.156 kg, leaves the hand at a speed of 139 km / h, when the arm is pointed vertically downward.Part (a) Find the rotational kinetic energy, in joules, of the pitcher's arm-ball system, given that the arm's moment of inertia is 0.72 kg · m2 and the ball leaves the hand at a distance of 0.725 m from...
A 1.85 m tall basketball player attempts a goal 14.03m from the basketball hoop, which is...
A 1.85 m tall basketball player attempts a goal 14.03m from the basketball hoop, which is at the height of 3.05 m. The acceleration of gravity id 9.81 m/s^2. If he shoots the ball at an angle of 46.0 degree, at what initial speed must he throw the basketball so that it goes through the hoop without striking the board? What is the time required for the ball to reach its maximum height? Determine the maximum height reached by the...
on 29 of 31> Suppose a fast-pitch softball player does a windmill pitch, moving her hand through a circular arc with her arm straight. She releases the ball at a speed of 29.4 m/s (about 65.8 mph). Just before the ball leaves her hand, the ball's radial acceleration is 4230 m/s. What is the length of her arm from the pivot point at her shoulder? length TOOLS
Constants I Peiodic Table Y Part A fast pitch softball player does windmil ptch moving her hand through a vertical circular anc to pitch a bail at 75mph. The 0.20 kg ballis 52 cn from the pivot point at her shoulder Express your answer in meters per second squared m/ Submit Request Answer Part B Al the lowest point of the clecle, the ball has reached its maximum speed. What is the magnitude of the force her hand exerts on...
A 1.85 m tall basketball player attempts a goal 14.03m from the basketball hoop, which is at the height of 3.05 m. The acceleration of gravity id 9.81 m/s^2. If he shoots the ball at an angle of 46.0 degree, at what initial speed must he throw the basketball so that it goes through the hoop without striking the board? What is the time required for the ball to reach its maximum height? Determine the maximum height reached by the...
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