# physics

a skydiver who weighs 500N reaches terminal velocity of 90 km/h. the air resistence on the diver is then...
a)90N
b)250N
c)410N
d)500N
e)none of these

1. 👍 0
2. 👎 0
3. 👁 557
1. Terninal velocity is reached when the weight equals the air resistance force. At that point, forces are in balance and acceleration stops.

That should be a good clue.

1. 👍 0
2. 👎 1

## Similar Questions

1. ### Science

A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she opens the parachute.

2. ### Physics

A 70.0 kg skydiver falls towards the earth. If the force due to air resistance is 500 N, what is the acceleration of the skydiver? The skydiver opens her chute. The force due to air resistance is now 1200N. What is the

3. ### Physics

A 71 kg skydiver jumps out of a plane at an altitude of 1370m. She reaches terminal velocity of 68m/s. She opens the parachute at an altitude of 328m, and lands with a speed of 2.8m/s. a)How much (negative) work is done by air

4. ### physics

A 60 kg skydiver moving at terminal speed falls 50 m in 1 sec. What power is the skydiver expending on the air? The terminal speed of the falling object is the maximum constant speed the object will reach due to the opposing force

1. ### Physics

Air resistance acting on a falling body can be taken into account by the approximate relation for the acceleration: a= dv/dt = g - kv, where k is a constant. (a) Derive a formula for the velocity of the body as a function of time

2. ### Math

A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she opens the parachute.

3. ### Physics

A skydiver, who weighs 650 N, is falling at a constant speed with his parachute open. Consider the apparatus that connects the parachute to the skydiver to be part of the parachute. The parachute pulls upward with a force of 620

A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until

1. ### Physics

A 580-g squirrel with a surface area of 855 cm2 falls from a 5.2-m tree to the ground. Estimate its terminal velocity. (Use the drag coefficient for a horizontal skydiver. Assume that the cross-sectional area of the squirrel can

2. ### Science

Explain the energy transformations during skydiving Explain what happens once a skydiver reaches terminal velocity please help...i cant find any information...please note that I need to EXPLAIN

3. ### Physics- Object Reaches Maximum Height

When an object that has been thrown into the air reaches its maximum height, which is true? a. its velocity is zero. b. it is at its terminal velocity. c. it is not in free fall. d. its acceleration is zero.

4. ### nusyu

A small, spherical bead of mass 3.00 g is released from rest at t = 0 from a point under the surface of a viscous liquid. The terminal speed is observed to be £oT = 2.00 cm/s. Find (a) the value of the constant b that appears in