Friction
Riding a bike experiences rolling friction because the tires are in contact with the ground and the force needed to overcome the resistance of the surface and keep the wheels rolling creates this friction. The deformation of the tire as it grips the ground and the energy loss due to internal friction within the tire also contribute to rolling friction.
(a) The bowling ball rolling down the alley has kinetic energy due to its motion. (b) The book sitting on the top shelf of the bookcase has potential energy due to its position above the ground.
Both the car and the bowling ball will hit the ground at the same time, assuming they are dropped from the same height in a vacuum. This is because all objects fall at the same rate of acceleration due to gravity, regardless of their mass.
In a vacuum, they would hit the ground at the same time due to gravity. However, in the real world with air resistance, the bowling ball would typically hit the ground first because it has more mass and air resistance affects lighter objects more.
An ice hockey puck has less friction than a ball rolling on the ground because the puck's smooth, flat surface makes contact with the ice, reducing friction. In contrast, a ball rolling on the ground has more points of contact with the rough surface, leading to increased friction that slows it down. Additionally, the presence of air between the ball and the ground can also contribute to more friction.
The bowling ball will hit the ground first because it has more mass than the golf ball, so it experiences a greater force of gravity pulling it downward. This causes the bowling ball to accelerate more quickly than the golf ball, making it reach the ground sooner.
Riding a bike experiences rolling friction because the tires are in contact with the ground and the force needed to overcome the resistance of the surface and keep the wheels rolling creates this friction. The deformation of the tire as it grips the ground and the energy loss due to internal friction within the tire also contribute to rolling friction.
(a) The bowling ball rolling down the alley has kinetic energy due to its motion. (b) The book sitting on the top shelf of the bookcase has potential energy due to its position above the ground.
Both the car and the bowling ball will hit the ground at the same time, assuming they are dropped from the same height in a vacuum. This is because all objects fall at the same rate of acceleration due to gravity, regardless of their mass.
Assuming both were dropped from the same height above ground, in a vacuum both would hit the ground at the same time. In a significant atmosphere (e.g. average ground-level on Earch) the bowling ball would hit the ground first.
No. It is on even ground.
No. They will hit the ground at the same time. The inertia for the heavier ball will be greater, but the acceleration for both will be the same, and both would (if the air resistance is the same for both) hit at the same time.
It would keep rolling.
In a vacuum, they would hit the ground at the same time due to gravity. However, in the real world with air resistance, the bowling ball would typically hit the ground first because it has more mass and air resistance affects lighter objects more.
An ice hockey puck has less friction than a ball rolling on the ground because the puck's smooth, flat surface makes contact with the ice, reducing friction. In contrast, a ball rolling on the ground has more points of contact with the rough surface, leading to increased friction that slows it down. Additionally, the presence of air between the ball and the ground can also contribute to more friction.
Yes... Its not the weight but the force of gravity
An ice-hockey puck has less friction than a ball rolling on the ground because ice surfaces are smoother and provide less resistance compared to the irregularities on the ground that increase friction. Additionally, the material of the ice-hockey puck and the ice surface are designed to have low friction properties to allow for smoother and faster movement on the ice.