Question

In: Physics

A ball rolls down along an incline without slipping. A block slides down from the same...



A ball rolls down along an incline without slipping. A block slides down from the same incline without friction. Assuming the two objects start from the same position, which of the following statement is correct?

Solutions

Expert Solution

from the above two arguments one which is correct and acceptable is:

i) A ball rolls down along an incline without slipping.

Practically any surface without any friction ,is not real we cannot have a surface which has no friction or its friction less.

when a ball rolls down an inclined plane ( with some descent angle) it is possible that when it rolls down , it happens without slipping if the surface has high friction coefficient such that no slipping occurs , which is evident by the fact that when we descend down an inclined hill we can perform our task without any slipping by wearing some short of tracking shoes, so yes it is possible and practical.

but if we say that the block slides down the incline plane without any friction , it practically not possible , because every surface posses some friction and if it said that it slides down the incline without friction is not true in fact it is just a theory.


Related Solutions

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 ball rolls down from the top of an incline with a height of 5 m...
A ball rolls down from the top of an incline with a height of 5 m high without slipping. The ball has a diameter of 0.2m. What are the ball’s translational speeds a) at the center of the ball, b) at the contact point on the ground, and c) at the top of the ball when it arrives at the bottom? What values of "c" do you expect for hollow/solid balls? Will the hollow ball be faster?
A bowling ball rolls without slipping up a ramp. If the speed at the bottom of...
A bowling ball rolls without slipping up a ramp. If the speed at the bottom of the ramp is 2.85 m/s and the height of the ramp is 0.525 m, what is the speed of the ball at the top of the ramp?
A, A thin cylindrical shell is released from rest and rolls without slipping down an inclined...
A, A thin cylindrical shell is released from rest and rolls without slipping down an inclined ramp, a distance s, that makes an angle of θ with the horizontal. If the coefficient of friction is µK, what is the speed at the bottom of the ramp? 2, A force P pushes a block at an angle 30° from the vertical across the ceiling. There is a coefficient of kinetic friction, µk. What is the acceleration?
A solid 0.5350-kg ball rolls without slipping down a track toward a loop-the-loop of radius R...
A solid 0.5350-kg ball rolls without slipping down a track toward a loop-the-loop of radius R = 0.8150 m. What minimum translational speed vmin must the ball have when it is a height H = 1.276 m above the bottom of the loop, in order to complete the loop without falling off the track?
A ball rolls down a hill from rest and collides with a block on wheels at...
A ball rolls down a hill from rest and collides with a block on wheels at the bottom. The block has a mass which is 4 times larger than the mass of the ball. Calculate the direction and velocity of the block and ball after the collision, if they were (a) elastic, or (b) perfectly inelastic. Please show the answers in terms of g and h. (c) how much of the kinetic energy is lost in the elastic collision of...
The cart rolls down an incline. The launcher fires the ball in a direction perpendicular to...
The cart rolls down an incline. The launcher fires the ball in a direction perpendicular to the cart. Show that the ball lands back in the cart.
A hollow ball, made of a thin plastic shell, rolls down a rough hill (no slipping)...
A hollow ball, made of a thin plastic shell, rolls down a rough hill (no slipping) of height h? from rest and across a level ground. It then approaches another hill, but this one is smooth and frictionless. a) Draw a diagram of this situation. (4 points) b) Write down the energy equation which represents the first half of the journey and simplify it to find an expression for the maximum linear velocity of the ball. (4 points) c) Write...
a 1m radius cylinder with a mass of 852.9 kg rolls without slipping down a hill...
a 1m radius cylinder with a mass of 852.9 kg rolls without slipping down a hill which is 82.1 meters high. at the bottom of the hill what friction of its total kinetic energy is invested in rotational kinetic energy
A 150g ball slides down a perfectly smooth incline starting at a height of 2.44m, at...
A 150g ball slides down a perfectly smooth incline starting at a height of 2.44m, at rest. At the bottom of the incline is strikes and sticks to a 280g block. The block/ball combo are then free to move along a frictionless rollercoaster track. The first hill is only 23 cm high. Can it make it over this first hill? Defend your response with detailed analysis. If the combo CAN make it over the hill, how fast is it moving...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT