Centripetal
A block attached to a string is moving with uniform circular motion, This force is causing the centripetal motion.
What is tension?
A 3 kg block is being pushed with 20N across a rough horizontal plane such that it moves with constant velocity, This is the magnitude of the frictional force.
What is 20N?
A block with a mass of 32 kg is accelerating at 6 m/s2 across a smooth horizontal plane, This is the magnitude of the normal force.
What is 320N?
A 5kg block is hanging from a string of negligible mass of which the other end is attached to a ceiling, This is the magnitude of tension in the string.
What is 50N?
A block is attached to a spring with K=200 N/m and it is compressed 0.5 meters, This is the magnitude of the spring force applied to the block at that point.
What is 100N?
A string is attached to a block of mass m that moves in uniform circular motion. At the northern-most point in the path. This is where the acceleration of the block pointed toward. (Use compass directions to indicate direction for your answer)
What is south? (or toward pivot of rotation)
Block 1 of mass m is being pushed with a constant force F1 that causes acceleration a1 across a smooth horizontal plane. Block 1 is replaced with Block 2 that has a mass m2 which is greater than m1 and has an identical frictional constant to Block 1. This the magnitude of the new acceleration a2 in comparison to a1.
What is less than a1?
A block of mass m is resting on a ramp that makes an angle θ with the horizontal, This is the magnitude of the normal force applied to the block.
What is mgcos(θ)?
A block of mass 12 kg is hung using a string of non-negligible mass 2 kg and uniform density. This is the tension in the halfway point in the strings length.
What is 130N?
A 24 kg block is hung from a spring of k=300 N/m. This is the new equilibrium position of the block compared to the unstretched length.
What is .8 m?
A block attached to a string of length L1 is moving in uniform circular motion with a velocity v1, if the original string is replaced with a second string of length L2 and the block now spins with a velocity v2 that is twice the speed of v1. Tensions are equal, This is the new length L2 in terms of L1.
What is 4L1?
A wheel of mass m and radius r rotates vertically with an angular velocity ω about a frictionless axle placed in its center. The wheel rubs against a rough surface at one point at the edge of its radius. If the wheel is replaced with a second wheel of identical mass and a new radius r2 which is smaller than r, This is what happens to the magnitude of the frictional force.
What is no change?
A force of 160N is applied at an angle 35 degrees upward with respect to the horizontal to a block with a mass of 63 kg that is resting on a smooth horizontal surface, This is the magnitude of the normal force.
What is 538.23N?
Two blocks are hung from strings on either end of a pulley. Block 1 has a mass of 2 kg while Block 2 has a mass of 5 kg. This is the magnitude of acceleration for Block 1.
What is 15 m/s2?
A block with mass m is attached spring with spring constant k1 is compressed a distance d on a smooth horizontal surface, when released the block has an acceleration a1. If the spring is replaced with a spring of spring constant k2 which is two times stiffer than k1 and is compressed a distance 2d, assuming identical blocks and surfaces This is the new instantenous acceleration a2 in terms of a1.
What is 4a1?
A car of mass m is going around a super radical tubular super duper loop. If the car is moving with the minimum speed necessary to complete the loop. This is the magnitude of the centripetal force in terms of m and physical constants when the car is at the top of the super radical tubular super duper loop?
What is mg?
A disk with mass m and radius r is accelerating angularly with α1 due to a constant force F1 applied at its edge. It rotates about an axle that goes through its center. The axle's radius is one fourth the radius of the disk, and there is non-negligible friction between the axle and disk. The magnitude of the frictional force is one half of F1. Derive an expression for α1 in terms of r,m, and F1.
What is 7F1/4mr?
Two men of masses m1 and m2 are standing in an elevator of mass m3 that is accelerating downward with an acceleration a1 downward. This is the expression for the apparent weight of the second person (m2).
What is m2g-m2a1?
Two blocks are attached to a string that hangs over a pulley, Block 1 of mass m1 is resting on a smooth ramp while the pulley is attached near the top of the ramp, Block 2 of mass m2 is suspended in the air. When the system is released, Block 1 has static friction acting on it and does not slip. This is the acceleration of block 2.
What is 0 m/s2?
A block of mass m is hung from a spring of spring constant k such that it is suspended in an equilibrium position. If the initial spring is replaced with 3 springs of spring constant 4k that are stacked on top of one another such that they create one effective spring, assuming the same mass is hung from the set of springs. The is what happens to the equilibrium position of the new set of springs compared to the old equilibrium position?
What is shorter/higher up?
A car is moving across a smooth circular banked road of radius r with velocity v. The car moves in such a way where the car does not slide up or down the banked road. This is the ideal banking angle for the car to finish the curve under these conditions in terms of v,r, and physical constants.
What is arctan(v2/rg)?
A block of mass 5 kg is held in place on a rough ramp that makes an angle of 30 degrees with the horizontal. The block has frictional coefficients of .5 and 1 for kinetic and static friction respectively. This is the acceleration of the block when released.
What is 0 m/s2?
A block of mass 18 kg is accelerating down a smooth ramp that makes an angle of 60 degrees with respect to the ground. There is a string attached to the block that is applying a force of magnitude 30N at an angle of 60 degrees with respect to the vertical. This is the magnitude of the normal force.
What is 82.5N?
Two strings of negligible mass are attached to a block of mass m. The block is suspended in the air due to the tensions from the strings. The strings have tensions T1 and T2 where T1 is connected horizontally to the block and T2 is connected θ2 degrees upward with respect to the horizontal. This is the string with greater tension.
What is string 2?
A block is attached to a spring oscillator that moves with motion modeled by Graph S500. These are the times bounded by the graph is the block moving with its maximum velocity.
What is 1s,2s,3.5s,4.5s?