Question

In: Physics

A) A solid disk rolls down an incline plane. The disk has a mass of 88...

A) A solid disk rolls down an incline plane. The disk has a mass of 88 grams, a radius of 0.15 meters, and starts at a height of 4 meters above the bottom of the ramp. What is the magnitude of the velocity of the disk at the bottom of the ramp, in m/s?

B) A spring-loaded launcher has a spring constant of 230 N/m. The spring is compressed 4.5 cm. A 25 gram ball is launched exactly horizontally from the launcher. What is the speed of the ball immediately after launch?

Solutions

Expert Solution

For better understanding you may read following article..Hi any doubts leave a comment.. THANKS


Related Solutions

A solid, uniform disk of radius 0.250 m and mass 53.2 kg rolls down a ramp...
A solid, uniform disk of radius 0.250 m and mass 53.2 kg rolls down a ramp of length 4.70 m that makes an angle of 12.0° with the horizontal. The disk starts from rest from the top of the ramp. (a) Find the speed of the disk's center of mass when it reaches the bottom of the ramp. m/s (b) Find the angular speed of the disk at the bottom of the ramp. rad/s
A solid, uniform disk of radius 0.250 m and mass 60.6 kg rolls down a ramp...
A solid, uniform disk of radius 0.250 m and mass 60.6 kg rolls down a ramp of length 4.80 m that makes an angle of 12.0° with the horizontal. The disk starts from rest from the top of the ramp. (a) Find the speed of the disk's center of mass when it reaches the bottom of the ramp. m/s (b) Find the angular speed of the disk at the bottom of the ramp. rad/s
An object of mass m = 3.65kg rolls off of an incline plane from a height...
An object of mass m = 3.65kg rolls off of an incline plane from a height of 8.75m, where the angle of the incline measured from the horizontal is 31.3o. If the object is a solid uniform cylinder of radius r = 1.55m, then at the bottom of the ramp, what is the (a) rotational kinetic energy and (b) the translational kinetic energy. If the object is a hoop of radius, r = 1.15m, then at the bottom of the...
An object of mass m = 3.05kg rolls off of an incline plane from a height...
An object of mass m = 3.05kg rolls off of an incline plane from a height of 7.55m, where the angle of the incline measured from the horizontal is 37.3o. If the object is a solid uniform cylinder of radius r = 1.25m, then at the bottom of the ramp, what is the (a) rotational kinetic energy and (b) the translational kinetic energy. If the object is a hoop of radius, r = 1.05m, then at the bottom of the...
A box slides down a frictionless incline and a hoop, uniform disk and a solid sphere...
A box slides down a frictionless incline and a hoop, uniform disk and a solid sphere all roll down another incline of exactly the same length and height.  They all have the same mass and start out from rest at the same time.  Rank the objects: box, hoop, disk and sphere in the order they reach the bottom of the ramp.  If any reach the bottom at the same time, state that explicitly.   Reaches first ______     ______             ______             ______ Reaches bottom last
A sphere of radius 20 cm and a mass of 3 kg rolls down an incline...
A sphere of radius 20 cm and a mass of 3 kg rolls down an incline of 14.6o and 14 cm high. a. Calculate its translational and rotational kinetic energy when it reaches the bottom. b. What is the ratio of the translational kinetic energy to the rotational kinetic energy? c. What quantities does this ratio depend on?
an object m = 3.05kg rolls from rest down an incline plane, its center initially at...
an object m = 3.05kg rolls from rest down an incline plane, its center initially at a height of 7.55m above the bottom of the ramp. The inclination of the incline as measured from the horizontal is 37.3o. If the object is a solid uniform cylinder of radius r = 1.25m, then at the bottom of the incline, what is the (a) rotational kinetic energy and (b) the angular momentum. If the object is a hoop of radius, r =...
A uniform hoop of mass M and radius R rolls down an incline without slipping, starting...
A uniform hoop of mass M and radius R rolls down an incline without slipping, starting from rest. The angle of inclination of the incline is θ. a. After moving a distance L along the incline, what is the angular speed ω of the hoop? b. If the coefficient of static friction between the hoop and the incline is µs = 1/3, what is the greatest possible value of θ such that no slipping occurs between the hoop and the...
A disk rolls up an inclined plane, reaches point A, stops there momentarily, and then rolls...
A disk rolls up an inclined plane, reaches point A, stops there momentarily, and then rolls down the inclined plane. Use the x-y coordinate system to determine the direction of the angular velocity and the angular acceleration in each part of the motion as given below. If either one is zero, say so. (a) when the disk is going up the incline. (i) angular velocity? (ii) angular acceleration? (b) at point at the top of the incline (point A) when...
Two solid spheres are running down from incline of height 3.7 m. Sphere A has mass...
Two solid spheres are running down from incline of height 3.7 m. Sphere A has mass 3.3 kg; radius 15.7 cm; sphere B has mass 7.4 kg and radius of 39.3 cm. Find the ratio of their angular velocities omegaA/omegaB at the bottom of the incline.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT