A disc of radius R = 20.0 cm, mass M = 2.5kg is mounted on a frictionless, horizontal axle through O. A block of mass m = 5.0 kg is attached to a light string wrapped around the disc. When the block is released from rest from a height h = 2.25m above the floor, it accelerates downward to hit the floor. 1. In terms of vf, calculated in the question above, what is the value of the tangential acceleration of a point P on the rim of the disc when m hits the floor?
a. v2f / 4.5 m
b. v2f / 0.2 m
c. v2f / 0.225s
2. A disc of radius R = 20.0 cm, mass M = 2.5kg is mounted on a frictionless, horizontal axle through O. A block of mass m = 5.0 kg is attached to a light string wrapped around the disc. When the block is released from rest from a height h = 2.25m above the floor, it accelerates downward to hit the floor. In terms of vf, calculated above, what is the value of the radial acceleration ac of a point on the disc 10.0 cm from the center of the disc when m hits the floor?
a. v2f / 0.1m
b. v2f / 0.4m
c. v2f / 0.8m

(75°f − 32) × 5/9 = 23.889°c

from

explanation:

wind is defined by the direction it blows from.   for example, a wind blowing from north to south is called a northerly wind.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.