Which rolls to the bottom of a hill sooner, a car tire alone or the same tire mounted on a rim?
the mounted tire, regardless of
its weight.
Which has more rotational inertia a bicycle wheel or a solid disk?
Which has more rotational inertia (resistance to change), a bicycle wheel or a solid disk of the same mall and diameter?
The wheel
. Which has more rotational inertia (resistance to change), a girl running with her legs bent or the same girl running with her legs bent? … Mass of the solid cylinder is large.
Which objects roll down an incline with the greatest acceleration?
Which objects roll down an incline with the greatest acceleration?
Any solid cylinder
will roll down an incline with greater acceleration than any hollow cylinder if the…
In rotational motion, torque is required to produce an angular acceleration of an object. The amount of torque required to produce an angular acceleration depends on the
distribution of the mass of the object
. … The torque on a given axis is the product of the moment of inertia and the angular acceleration.
What effect does changing the length of the incline have on the speed of a ball when it rolls to the bottom?
The greater the angle of the incline the ball is rolling down,
the greater velocity the ball will reach
. The greater the mass of the ball, the greater velocity the ball will reach. The more centered the mass of the ball, the greater velocity the ball will reach.
Which moves faster a horse near the outside of a merry go round or a horse near the inside?
All of the horses move through one complete circle in the same amount of time. The horses on the outside of the carousel have to cover more distance than the inside horses in the same amount of time. This means
the horses on the outside
have a faster linear speed than those at the hub.
Which has greater rotational speed a horse near the outside of a merry go round or a horse near the inside of a merry go round?
The ANGULAR speed is the same for both.
The TANGENTIAL speed
is greater for a horse near the outside rail.
Is angular momentum always conserved?
Just as linear momentum is conserved when there is no net external forces,
angular momentum is constant or conserved when the net torque is zero
.
Does rotational inertia depend on mass?
Rotational inertia plays a similar role in rotational mechanics to mass in linear mechanics. Indeed, the rotational inertia of an object
depends on its mass
. It also depends on the distribution of that mass relative to the axis of rotation.
Which of these will roll down an incline fastest?
Which of these will roll down an incline fastest?
The one with the greatest mass will roll
fastest.
What is tangential acceleration formula?
The tangential acceleration
= radius of the rotation * its angular acceleration
. It is always measured in radian per second square. Its dimensional formula is [T
– 2
]. … When an object makes a circular motion, it experiences both tangential and centripetal acceleration.
Does mass affect tangential acceleration?
Angular
acceleration is inversely proportional to mass
.
What is a good rotational acceleration?
Here are two pro players, one with high rotational acceleration and one with low. Average Rotational Acceleration –
22.1g
. Average Rotational Acceleration – 7g. Both players create good bat speed, as Player One’s average was 72.3 mph, and Player Two’s average was 71 mph.
Why does a ball accelerate as it rolls down a hill?
When a rolling object, such as a ball or something on wheels, goes down a
hill it will speed up
. … On a flat surface, it will keep going at the same speed. The change in speed on slopes is due to gravity. When going downhill, objects will accelerate (go faster), and when going uphill they will decelerate (slow down).
Does a heavier ball roll faster than a lighter ball?
Because of this, the mass cancels out and should not affect the rolling speed. In fact, it should be the radius of the ball that affects the rolling speed. Naturally,
heavier balls are bigger and they thus roll faster because of their size
, not their mass.
How does the angle of incline affect acceleration?
As the angle increases,
the component of force parallel to the incline
increases and the component of force perpendicular to the incline decreases. It is the parallel component of the weight vector that causes the acceleration. Thus, accelerations are greater at greater angles of incline.
