When a parachute opens, the air exerts a large drag force on it. This upward force...

When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 852 N and the drag force has a magnitude of 1018 N. The mass of the sky diver is 86.9 kg. Take upward to be the positive direction. What is his acceleration, including sign?

Solutions

Expert Solution

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

In a car lift, compressed air exerts a force on a piston with a radius of...

In a car lift, compressed air exerts a force on a piston with a radius of 5.00 cm. The pressure is transmitted to a second piston with a diameter of 30.0 cm. (A) How large of a force must the compressed air exert to lift a 1.33x10^4 N car? (B) How much pressure is exerted by the compressed air?

A negative charge of -0.510 μC exerts an upward 0.700-N force on an unknown charge that...

A negative charge of -0.510 μC exerts an upward 0.700-N force on an unknown charge that is located 0.300 m directly below the first charge. Part A What is the value of the unknown charge (magnitude and sign)? Express your answer with the appropriate units. Part B What is the magnitude of the force that the unknown charge exerts on the -0.510 μC charge? Express your answer with the appropriate units. Part C What is the direction of this force?...

4.15 A small 7.40-kg rocket burns fuel that exerts a time-varying upward force on the rocket....

4.15 A small 7.40-kg rocket burns fuel that exerts a time-varying upward force on the rocket. This force obeys the equation F=A+Bt2. Measurements show that at t=0, the force is 104.0N , and at the end of the first 1.50s , it is 193.0N . Find the constant A Find the constants B Find the net force on this rocket the instant after the fuel ignites. Find the acceleration of this rocket the instant after the fuel ignites. Find the...

A charged particle A exerts a force of 2.62

What is the force that the fist exerts on the top of the bottle?

A glass soda bottle is emptied of soda and filled to the very top with water. A cork is carefully fitted into the top of the bottle, leaving no air between the cork and the water. The top of the bottle has a diameter of D_top = 2.00 cm and the bottom of the bottle has a diameter of D_bot = 6.50 cm. The glass breaks when it is exposed to p_max = 70.0 MPa of pressure. A student hits...

A 6.2-mm-diameter electrical transmission line is exposed to windy air. Determine the drag force exerted on...

A 6.2-mm-diameter electrical transmission line is exposed to windy air. Determine the drag force exerted on a 165-m-long section of the wire during a windy day when the air is at 1 atm and 15°C and the wind is blowing across the transmission line at 65 km/h. The density and kinematic viscosity of air at 1 atm and 15°C are ρ = 1.225 kg/m3 and ν = 1.470×10-5 m2/s. _____ N

Since the floor is rough, it exerts both a normal force N1 and a frictional force...

Since the floor is rough, it exerts both a normal force N1 and a frictional force f1 on the ladder. However, since the wall is frictionless, it exerts only a normal force N2 on the ladder. The ladder has a length of L = 4.1 m, a weight of WL = 58.5 N, and rests against the wall a distance d = 3.75 m above the floor. If a person with a mass of m = 90 kg is standing...

(a) You throw a beach ball upward with an initial velocity of v0. When the air...

(a) You throw a beach ball upward with an initial velocity of v0. When the air resistance is linear Fdrag = -bv, find the maximum height of the ball, the time of flight, and the final velocity. (b) You throw a beach ball upward with an initial velocity of v0. When the air resistance is quadratic Fdrag = -cv^2, find the maximum height of the ball, the time of flight, and the final velocity. (c) You throw a beach ball...

A fire hose exerts a force on the person holding it. This is because the water...

A fire hose exerts a force on the person holding it. This is because the water accelerates as it goes from the hose through the nozzle. Part A How much force is required to hold a 5.0-cm-diameter hose delivering 360 L/min through a 0.75-cm-diameter nozzle?

What is the magnitude and direction of an electric field if it exerts a downward force...

What is the magnitude and direction of an electric field if it exerts a downward force of 10-6N on a charge of -5μC? Could you please explain how to do this question? Thank you

Subjects