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Why do you need to use force to move a ball up a ramp when it moves downward by itself?
Wiki User
∙ 14y ago
The force of gravity makes the ball move downward. To move it upward, you need to supply enough force to compensate for this (to stop the downward motion) plus a little extra (to cause the ball to move upward).
Wiki User
∙ 14y ago
Wiki User
∙ 14y agogravity
Kimberly Anne Mika
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A free body diagram of a ball falling in the presence of air resistance would show A only a downward arrow to represent air resistance B a downward arrow to represent gravity C neither?
Neither. It would need a downward pointing arrow for the force of the acceleration due to gravity and a second arrow for the air resistance pointing up.
What force is acting upon a ball that is thrown in the air?
On the bullet itself, gravity and air friction.
Describe contact force and noncontact force that affect the motion of a baseball a pitcher has thrown the ball?
The contact force will keep the ball moving but as the ball goes farther the ball slows down that's were the non contact force comes in it makes the ball not in contact
What are the example of work in the context of science?
if u kick a ball and it moves
Newtons 3 laws apply to soccer?
1st law:Newton's first law of Inertia can be seen in many ways. The most common are:1) The force of gravity pulling down on the player2) The (equal and opposite) force of the ground pushing back on the player3) Gravity pushing down on the soccer ball4) The ground pushing back up on the soccer ballAfter the ball is in the air, inertia is acting upon it too:1) Ball being pulled back down toward Earth from gravity2) Ball slowing down in the air from the Friction, or air resistance2nd law:As a player runs and dribble the ball he pushes and run with varying momentum (velocity) therefore, in a specific time frame. He experiences a rate of change of momentum. thus give rise to a resultant force. Evident if he runs and runs straight.3rd law:Newton's thrid law of motion is played out in soccer when the ball has been kicked. We do not really notice this, but the ball is actually pushing back on the foot after it has been kicked, but as we are much bigger than the soccer ball it will go flying. The force of the ball against our foot is equal and oppositeto the force of the player.
When you throw a ball up why does the vertical component undergo change?
Because there's a constant downward vertical force on the ball, so it must accelerate downward. If you give it an initial upward velocity, the magnitude of that upward velocity must steadily decrease, and it must eventually dwindle to zero and then become downward velocity. The constant downward vertical force on the ball is the force of attraction between the mass of the ball and the mass of the Earth, caused by gravity.
What is the force exerted by a 3kg ball?
the force exerted by a 3 kg ball on earth is weight force, whose direction is downward, and magnitude is 29.4 newton.
Which describes a force acting on an object?
a ball that moves when kicked
When a ball is dropped it is easy to see that earth exerts a force on it Why cant you tell that the ball exerts a force on earth?
it moves
Why a ball on a slope moves downwards?
Because of the force of gravity.
What is the net force acting on a freely falling 1-kg ball if it encounters 2 N of air resistance?
The idea is to calculate the downward force of gravity, and then subtract the air resistance, since it acts in the opposite way. This assumes that the ball falls directly downward.
Why balls reduce speed when it ascends higher?
As a ball goes up, the force of gravity is acting on it. The force of gravity means that acceleration in the upward direction is negative (and thus positive in the downward direction). The upward velocity of the ball decreases until it reaches zero - then ball begins to descend with increasing downward velocity.
Is work done when you throw a ball?
Yes, throwing the ball requires a force, and work is done when a force moves a mass over a distance.
How do you increase the kinetic energy of a ball without increasing its mass?
you apply a force tp the ball that moves it
Why does the ball thrown level to the ground move downward?
A ball thrown parallel to the ground moves downward toward the surface of the Earth because of the force of gravity.
If you have 3 balls on the top of a building and one is dropped. one is thrown downward. and one is thrown up and then goes downward Which has the fastest volocity when it hits the ground?
The thrown ball will (usually) have the highest velocity as the acceleration (resultant of force) used to throw it exceeds that of the other two balls. The ball thrown upward will have a higher downward velocity than the dropped ball even though their accelerations (due to gravity) are the same, as it has more time to travel downward. Although, If the ball thrown upward is thrown high enough, it may even travel faster than the ball thrown downward if the downward throw's force is not enough to beat the ball's terminal velocity (quite a bit of height would be required though).
How is math used in spiking a volleyball?
In volleyball math is used when you hit the ball. You use angles and force to hit the ball in a downward motion causing you to hit the ball or otherwise spike the ball.
