Consider a uniform ball being kicked as shown in the picture. What is the torque exerted...
Consider a uniform ball being kicked as shown in the picture.
What is the torque exerted by the force of the foot about the center of the ball?
Not enough information given. We need to know the angle of the force.
Homework Answers
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Consider a uniform ball being kicked as shown in the
picture.
What is the torque exerted...
A ball is kicked from a location (7,0, -8) (on the ground) with initial velocity (-9,...
A ball is kicked from a location (7,0, -8) (on the ground) with initial velocity (-9, 14, -4) m/s. The ball's speed is low enough that air resistance is negligible. (a) What is the velocity of the ball 0.2 seconds after being kicked? (Use the Momentum Principle!) (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.2 seconds after it is kicked? the final velocity of the ball the...
*Problem 2.35 A ball is kicked from a location 9, Ο 4> m on the ground...
*Problem 2.35 A ball is kicked from a location 9, Ο 4> m on the ground with initial velocityく10 13 0 (a) What is the velocity of the ball 0.2 s after being kicked? (Use the Momentum Principle!) 6> m/s. The ball's speed is low enough that air resistance is negligible. m/s (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.2 s after it is kicked? C C...
A ball is kicked from a location < 8, 0, -9> m (on the ground) with...
A ball is kicked from a location < 8, 0, -9> m (on the ground) with initial velocity <-11, 17.0, -4> m/s. The ball’s speed is low enough that air resistance is negligible. (a) What is the velocity of the ball 0.3 s after being kicked? (Use the Momentum Principle!) v→= < , , > m/s (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.3 s after it...
A ball is kicked from a location < 6, 0, -9> m (on the ground) with...
A ball is kicked from a location < 6, 0, -9> m (on the ground) with initial velocity<-13, 17.0, -4> m/s. The ball's speed is low enough that air resistance is negligible (a) What is the velocity of the ball 0.6 s after being kicked? (Use the Momentum Principle!) 11.2 4 m/S (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.6 s after it is kicked? the arithmetic...
A bar has four forces, all of the same magnitude, exerted on it, as shown. What...
A bar has four forces, all of the same magnitude, exerted on it, as shown. What is the sign of the torque about the axis of rotation? Use the sign convention shown. axis O not enough information O torque is zero O toque is positive Otorque is negative
A right angle of mass 4.00 and side a = 2.0 m and b. the triangle is pivoted at the corner at the top, as shown, with four forces, F1=17N, F2 =19N F3= 17 N and F4=17N acting on it. the angle is a = 25 degrees. what is the z component of the torque exerted
Consider a right triangle of mass 6.69 kg and sides a=2.1 m and b, shown in the picture below. The triangle is pivoted at the corner at the top, as shown, with four forces , F1=16 N, F2=16 N, F3=15 N, and F4=15 N acting on it. The angle a=27 degrees. What is the z-component of the torque exerted on the triangle by force F1? у Axis of rotation х FA a F1 a 90° a b α F2 F3
A ball of mass 0.4 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below
A ball of mass 0.4 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below. The velocity of the ball as it leaves the kicker’s foot is 16 m/s at angle of 46◦ above the horizontal. The top of the fence is 4 m high. The ball hits nothing while in flight and air resistance is negligible. The acceleration due to gravity is 9.8 m/s^2. Determine the time it takes for...
Torque on a Dipole in a Uniform Field (Looking for explanation, not just answers)
Consider an electric dipole whose dipole moment (a vector pointing from the negitive charge to the positive charge) is oriented at angle with respect to the y axis. There is an externalelectric field of magnitude (independent of the field produced bythe dipole) pointing in the positive y direction. The positive and negative ends of the dipole have charges and , respectively, and the two charges are a distance apart. The dipole has a moment of inertia about its center of...
As shown in the figure below, a stick of length = 0.395 m and mass m...
As shown in the figure below, a stick of length = 0.395 m and mass m -0.240 kg is in contact with a rough floor at one end and a frictionless bowling ball (diameter d = 15.00 cm) at some other point such that the angle between the stick and the floor is 0 - 30°. Determine the following. 30.0 (a) magnitude of the force exerted on the stick by the bowling ball 1.66 X Since the stick is in...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k is attached at one end to a frictionless pivot and is free to rotate about the pivot in the vertical plane as in the figure. The rod is released from rest in the horizontal position. What are the initial angular acceleration of the rod and the initial translational acceleration of its right end Pivot SOLVE IT Mg A rod is free to rotate around...
A ball is kicked from a location (7,0, -8) (on the ground) with initial velocity (-9, 14, -4) m/s. The ball's speed is low enough that air resistance is negligible. (a) What is the velocity of the ball 0.2 seconds after being kicked? (Use the Momentum Principle!) (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.2 seconds after it is kicked? the final velocity of the ball the...
*Problem 2.35 A ball is kicked from a location 9, Ο 4> m on the ground with initial velocityく10 13 0 (a) What is the velocity of the ball 0.2 s after being kicked? (Use the Momentum Principle!) 6> m/s. The ball's speed is low enough that air resistance is negligible. m/s (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.2 s after it is kicked? C C...
A ball is kicked from a location < 6, 0, -9> m (on the ground) with initial velocity<-13, 17.0, -4> m/s. The ball's speed is low enough that air resistance is negligible (a) What is the velocity of the ball 0.6 s after being kicked? (Use the Momentum Principle!) 11.2 4 m/S (b) In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.6 s after it is kicked? the arithmetic...
A bar has four forces, all of the same magnitude, exerted on it, as shown. What is the sign of the torque about the axis of rotation? Use the sign convention shown. axis O not enough information O torque is zero O toque is positive Otorque is negative
As shown in the figure below, a stick of length = 0.395 m and mass m -0.240 kg is in contact with a rough floor at one end and a frictionless bowling ball (diameter d = 15.00 cm) at some other point such that the angle between the stick and the floor is 0 - 30°. Determine the following. 30.0 (a) magnitude of the force exerted on the stick by the bowling ball 1.66 X Since the stick is in...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k is attached at one end to a frictionless pivot and is free to rotate about the pivot in the vertical plane as in the figure. The rod is released from rest in the horizontal position. What are the initial angular acceleration of the rod and the initial translational acceleration of its right end Pivot SOLVE IT Mg A rod is free to rotate around...
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