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when we use parachute, the wide surface area can decrease the velocity of the fallen object. thus, the drag force will also decrease. consequently, acceleration will be zero when the velocity is constant. finally, the object can land more safely without huge impact.
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∙ 13y ago
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How does net force affect acceleration?
If net force acting on a mass decreases, the acceleration of the object decreases. But if the mass of an object were to decrease while a constant net force acted on it, its acceleration would INcrease. If the net force on the object AND the object's mass both decrease, the object's acceleration could either increase OR decrease. We'd need the actual numbers in order to calculate how it would turn out.
What happen to the acceleration of the cart as you decrease the the washers in the pan?
Decreasing washers in the pan decreases mass, so acceleration should increase.
Does air resistance increase or decrease the acceleration of a falling leaf from a tree?
Air resistance decreases acceleration of falling objects
How does force vary with acceleration at constant mass?
If acceleration is kept constant but you vary the mass, the force will vary in direct proportion to the mass. If the mass increases, the force will also increase, and if the mass decreases the force will also decrease. Newton's 2nd Law, illustrated by the equation F=ma, illustrates this.
How would the size of parachute required on a space probe to allow it to land safely on a planet such as venus which has a thick atmosphere?
It would need to have a small parachute for a planet such as venus, because the atmospheric pressure is about 90 times that on Earth. This increases air resistance (drag) slowing the probe down. Therefore, the small parachute allows the probe to have more acceleration.
How is acceleration due to gravity be zero in a parachute?
At terminal velocity (constant velocity), the acceleration is zero, but prior to that, there is a downward acceleration.
Can a man in a parachute accelerate?
Yes. Acceleration can be positive or negative. When he jumps out of the airplane and is in free fall, he is accelerating in a downward direction, so his acceleration is negative. When he opens his parachute, he accelerates in an upward direction, so his acceleration is positive.
What does the friction of air do to parachute jumper or a pendulum?
It makes the parachute, jumper,and a pendulum to decrease speed.
Why is the acceleration of gravity the same for all objects regardless of their mass but when 2 people jump from an airplane with the same size parachute the heavier person has greater final velocity?
Acceleration due to gravity is the same ONLY if you assume there is no air resistance. This is definitely not the case if you use a parachute.
When skydiver slows down from 54 meters to 4 meters by opening his parachute If this takes 0.75 seconds what is the magnitude of the skydiver's acceleration?
the magnitude of the skydivers acceleration is zero as he is decelerating by opening his parachute!
What is the term that describes a decrease in acceleration?
it is still acceleration, but it is negative.
Does air resustance increase or decrease the acceleration of a falling abject?
Decrease.
Can acceleration change with out increase or decrease speed?
yes the 3 types of acceleration are increased speed decrease speed or change in direction.
What is the decrease of velocity?
Deceleration or negative acceleration.
When a body undergoes an acceleration does its speed increase or decrease?
Both. Acceleration is a change in speed.
Does an open parachute decrease the weight of a diver?
No, it will actually add to the total weight.
When the parachute deploys and opens does stfu slavik increase or decrease drag?
it decreases!
