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Will a man in a parachute with the air resistance less than his weight accelerate?
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Will a man in a parachute when the air resistance is less than his weight accelerate?
Yes, until he reaches terminal velocity.
Compare the effects of gravity and air resistance on a falling skydiver before and after she opens her parachute.?
-- The force of gravity is unchanged before and after.-- The force of air resistance on the skydiver is greater before, and less after,because she is falling slower after the parachute opens.-- The effect on her of air resistance is greater after the parachute is open. Theincreased air resistance itself acts on the parachute, and its effect is transferredto the skydiver through her harness.
Compare the effects of gravity and air resistance on a falling skydiver before and after she opens her parachute?
-- The force of gravity is unchanged before and after.-- The force of air resistance on the skydiver is greater before, and less after,because she is falling slower after the parachute opens.-- The effect on her of air resistance is greater after the parachute is open. Theincreased air resistance itself acts on the parachute, and its effect is transferredto the skydiver through her harness.
Why is a rocket eawier to accelerate as it travels through space?
much less air resistance.
Why does a stone fall faster than a feather?
The difference is in the air resistance. Without air resistance, both will accelerate at the same rate. If there is air, in the case of the stone the ratio of surface area / weight is less than that of a feather. As a result, the stone will slow down less than the feather, and fall faster.
What is the hypothesis for the parachutes?
Hypothesis: Will the speed of the parachute increase when more weight is put in to it and will it go slower if less weight is put in
Why is terminal velocity with a parachute open less than the terminal velocity before it was open?
because there is more air resistance
How does the size or shape of a parachute affect the way it works?
If the hole is bigger the parachute speed will decrease
Why does it take less effort to throw a marble than a basketball?
Because the Basketball weighs more than the marble ------------------------------------------------------------------------------------------ Most regular size, glass marbles weigh less about 0.16 ounces. A basketball weight about 22 ounces. When you throw something you have to accelerate its weight (mass) out of your hand, and a property of matter called "inertia" resists you. The size of the inertial resistance is directly dependent on the mass of the object, the bigger the inertia (mass) the bigger the resistance. Because of this it takes more effort (energy) to accelerate the heavier basketball compared to the lighter marble.
How could a toy rocket accelerate after takeoff?
As long as the thrust is more than the weight of the rocket (toy or otherwise) the rocket will accelerate. When the thrust matches the weight, the rocket will cruise. When the thrust is less then the rocket will slow.
Why is a heaver object harder to accelerate than a lighter object?
The difficulty to accelerate an object is related to its mass, not to its weight. However, on Earth (i.e., more or less constant gravity), mass and weight are also proportional. As to "why", I believe that is still an area of active research. We know that there is a property called mass, that causes gravitation, and inertia (i.e., a resistance to acceleration), but the exact nature of this property is still being studied.
Do heavier objects fall faster or slower than light one?
Without air resistance, heavier and lighter object fall at the same speed. More precisely, they accelerate at the same speed - near Earth's surface that would be 9.8 meters/second2. If air resistance is significant, heavier objects tend to have less air resistance, compared to their weight, so they will usually fall faster.
