A ball rolls down a hemi-spherical bowl. Circle the correct response: The centripetal force is...
(a) The normal force
(b) The net force of the vertical component of gravity and the normal force
A ball rolls down a hemi-spherical bowl. Circle the correct response: The centripetal force is... (a)...
Determine centripetal force. (the answers selected are
incorrect)
A spherical mass on the end of a string is spinning in a vertical circle about point P. Which of the forces acting on the mass is the centripetal force when the mass is in position A? The tension in the string. A The force of gravity (weight). The force of drag (air resistance). None of the above are correct. Which of the forces acting on the mass contribute to the centripetal...
A block slides down a frictionless hemi-spherical bowl (shown on the back of this page). It is released from rest at the point (2,0). Calculate the velocity, tangential acceleration, radial acceleration, and angular acceleration when the block goes through angular displacetments of 30°, 60, 90, 120, 150, and 180 Oa the diagram, draw vectors to scale representing each of the linear quantities.
2) A solid uniform ball of mass m and radius r rolls down a hemispherical bowl of radius R, starting from a height h above the bottom of the bowl. The surface on the left half of the bowl has sufficient friction to prevent slipping, and the right side is frictionless. R (a) (5 marks) Determine the angular speed w the ball rotates in terms of e', when it rolls without slipping. (b) (5 marks) Derive an expression for the...
A spherical mass on the end of a string is spinning in a vertical circle about point P. Which of the forces acting on the mass contribute to the "centripetal force" when the mass is in position A? Select all that apply. The tension in the string. The force of gravity (weight). The force of drag (air resistance). Which of the forces acting on the mass contribute to the "centripetal force" when the mass is in position B, directly to...
A child is twirling a 0.0120-kg plastic ball on a string in a horizontal circle whose radius is 0.100 m. The ball travels once around the circle in 0.500 s. (a) Determine the centripetal force acting on the ball. (b) If the speed is doubled, does the centripetal force double? If not, by what factor does the centripetal force increase? Question I need answered is, Why is gravity not considered when solving this problem?
1) A solid ball of mass M and radius R rolls without slipping down a hill with slope tan θ. (That is θ is the angle of the hill relative to the horizontal direction.) What is the static frictional force acting on it? It is possible to solve this question in a fairly simple way using two ingredients: a) As derived in the worksheet when an object of moment of inertia I, mass M and radius R starts at rest...
Calvin is building a snowman. He rolls a large spherical ball of snow, having mass m = 1600 kg and radius R = 0.9 m by pushing on it with a constant horizontal force F = 580 N as shown. The snowball rolls without slipping, so there must be a frictional force f exerted on the snowball by the ground. What is the acceleration of the snowball? Hint: Use the same method that we used in class to determine the...
A solid uniform spherical ball of mass 2.0 kg and radius 0.50 m rolls without slipping down a ramp that makes a 15 degree angle with the horizontal. What is the center-of-mass speed (in m/s) of the ball after it rolls 0.50 m down the ramp? A) 1.8 B) 2.5 C) 4.5 D) 7.0 E) None of these
You swing a ball in a vertical circle at the end of a string that always remains taut. At the top of the circle, the centripetal force on the ball is a.)larger thant its weight,b.)onehalf of its weight c) smaller than its weight d.) equal to its weight d.) twice its weight
show work and explain please.
2.- A ball rolls down an incline and off a horizontal ramp. Ignoring air resistance, what force or forces act on the ball as it moves through the air just after leaving the horizontal ramp? A. The weight of the ball acting vertically down. B. A horizontal force that maintains the motion. C. A force whose direction changes as the direction of motion changes. The weight of the ball and a horizontal force. EThe weight...