Responding to an alarm, a 75 kg fireman slides down a pole to the ground floor,...
Responding to an alarm, a 75 kg fireman slides down a pole to the ground floor, 3.2 m below. The fireman starts at rest and lands with a speed of 3.9 m/s. (a) Find the average force exerted on the fireman by the pole. N (b) If the landing speed is half that in part (a), is the average force exerted on the fireman doubled? yes no Explain. . (c) Find the average force exerted on the fireman when the landing speed is 1.95 m/s. N
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Responding to an alarm, a 75 kg fireman slides down a pole to
the ground floor,...
Responding to an alarm, a 77 kg fireman slides down a pole to the ground floor,...
Responding to an alarm, a 77 kg fireman slides down a pole to the ground floor, 3.9 m below. The fireman starts at rest and lands with a speed of 3.6 m/s. (a) Find the average force exerted on the fireman by the pole. N (b) If the landing speed is half that in part (a), is the average force exerted on the fireman doubled? yes or no Explain. (c) Find the average force exerted on the fireman when...
Responding to an alarm, a 75 kg fireman slides down a pole to the ground floor,...
Responding to an alarm, a 75 kg fireman slides down a pole to the ground floor, 3.2 m below. The fireman starts at rest and lands with a speed of 3.5 m/s. (a) Find the average force exerted on the fireman by the pole. N (b) If the landing speed is half that in part (a), is the average force exerted on the fireman doubled? yes no Explain. This answer has not been graded yet. (c) Find the average force...
Responding to an alarm, a 96 kg fireman slides down a pole to the ground floor,...
Responding to an alarm, a 96 kg fireman slides down a pole to the ground floor, 3.2 m below. The fireman starts at rest and lands with a speed of 3.6 m/s. (a) Find the average force exerted on the fireman by the pole. N (b) If the landing speed is double that in part (a), is the average force exerted on the fireman halved? yes or no Explain. (c) Find the average force exerted on the fireman when...
Playing on a playground, John Toleno ( 98 kg) slides down a pole to the ground...
Playing on a playground, John Toleno ( 98 kg) slides down a pole to the ground floor, 14 m below. Dr. Toleno starts at rest and lands with a speed of 3.5 m/s. (a) Find the average force exerted on Dr. Toleno by the pole. ____________ N (b) If the landing speed is half that in part (a), is the average force exerted on Dr. Toleno doubled? yes or no ? (c) Find the average force exerted on Dr. Toleno...
The alarm at a fire station rings and a 81-kg fireman, starting from rest, slides down...
The alarm at a fire station rings and a 81-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 4.5 m). Just before landing, his speed is 1.3 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman as he slides down the pole?
The alarm at a fire station rings and a 94-kg fireman, starting from rest, slides down...
The alarm at a fire station rings and a 94-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 4.5 m). Just before landing, his speed is 1.3 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman as he slides down the pole?
Starting from rest, a 90-kg firefighter slides down a fire pole. The average frictional force exerted...
Starting from rest, a 90-kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 805 N, and his speed at the bottom of the pole is 3.1 m/s. How far did he slide down the pole?
Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force everted...
Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 810 N, and his speed at the bottom of the pole is 3.6 m/s. How far did he slide down the pole?
4 A 3.0 kg crate slides down a 1 meter long ramp which is 0.5 m high, and makes an angle of 30° with the floor. The...
4 A 3.0 kg crate slides down a 1 meter long ramp which is 0.5 m high, and makes an angle of 30° with the floor. The crate starts from rest at the top of the ramp and experiences a constant frictional force of 5.0 N as it slides down. Calculate the speed of the crate as it reaches the bottom of the ramp. 1 m 0.5 m 30°
4 A 3.0 kg crate slides down a 1 meter long...
A firefighter who weighs 192 lb slides down an infinitely long fire pole that exerts a...
A firefighter who weighs 192 lb slides down an infinitely long fire pole that exerts a frictional resistive force with magnitude proportional to her speed, with constant of proportionality k. Find k, given that her terminal velocity is -16 ft/s, and then find her velocity v as a function of t. Assume that she starts from rest.
4 A 3.0 kg crate slides down a 1 meter long ramp which is 0.5 m high, and makes an angle of 30° with the floor. The crate starts from rest at the top of the ramp and experiences a constant frictional force of 5.0 N as it slides down. Calculate the speed of the crate as it reaches the bottom of the ramp. 1 m 0.5 m 30°
4 A 3.0 kg crate slides down a 1 meter long...
A firefighter who weighs 192 lb slides down an infinitely long fire pole that exerts a frictional resistive force with magnitude proportional to her speed, with constant of proportionality k. Find k, given that her terminal velocity is -16 ft/s, and then find her velocity v as a function of t. Assume that she starts from rest.
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