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A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.763 rev/s. A 59.4 kg person running tangential to the rim of the merry-go-round at 3.72 m/s jumps onto its rim and holds on. Before jumping on the merry-go-round, the person was moving in the same direction as the merry-go-round's rim. Calculate the initial and final kinetic energies for this system.
The coefficients of static and kinetic friction between a 67 kg box and a horizontal surface are 0.56 and 0.32, respectively. Illustrate what is the acceleration of the object if a 335 N horizontal force is applied to the box?
A 35 g bullet moving at 475 m/s strikes a 4.20 kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 270 m/s. How fast is the bag moving when the bullet exits.
express the magnitude of the applied horizontal force.
A 4.25 bullet traveling horizontally with a velocity of magnitude 375 is fired into a wooden block with mass 1.10 , initially at rest on a level frictionless surface. The bullet passes by the block and emerges with its speed reduced to 110 .
What should the charge (sign and magnitude) of a particle of mass 1.44 be for it to remain stationary when placed in a downward-directed electric field of magnitude 630 ? Use 9.81 for the magnitude of the acceleration due to gravity.
A 2.50 g bullet, traveling at a speed of 465 m/s, strikes the wooden block of a ballistic pendulum. The block has a mass of 275 g. What is the speed of the bullet/block combination immediately after collision.
Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the s..
Find the coefficient of kinetic friction between a 4.2 kg block and the horizontal surface on which it rests if an 92 N/m spring must be stretched by 1.8 cm to pull the block with constant speed
The potential at location A is 376V. A positively charged particle is released there from rest and arrives at location B with a speed vB.
A 15 g rifle bullet traveling 205 m/s buries itself in a 3.4 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of the pendulum's displacement.
The initial velocity of a 2.28 kg block sliding down a frictionless inclined plane is found to be 1.11 m/s, What is the angle of the plane with respect to the horizontal
Determine the highest speed the stone can attain without breaking the string.
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