A 70.0 kg firefighter climbs a flight of stairs 9.0 m high. How much work is required?
A 70.0 kg firefighter climbs a flight of stairs 9.0 m high. How much work is...
A 63.3-kg firefighter climbs a flight of stairs 28.7-m high. How much work (in J) does he do?
Name Date 9-10) A 165 pound student grudgingly climbs one flight of stairs (4.32 m) in a time of 15.50 seconds to make it to a physics test. How much work has the student done in climbing steps, and what is the student's average power output? (4.45 N 1 lb) Work Power = 11-12) A collision occurred between 2 carts. Use the data below to complete the charts. Mass of cart 1 Mass of cart 2 Velocity of cart 2...
A 100kg person climbs a 170 cm flight of stair in 1.4 second find the work done to climb the stairs and the power of the person in watts.
1a) How much work is required for a 60 kg person to climb the stairs near the entrance of Science 2 from the first floor to the second floor? The incline angle of the stairs is 30°, and the total height is 3.5 m. b) Suppose the same person decides to take the steeper staircase (incline ~ 35°) in the corner of the building instead. Would the work necessary to ascend to the second floor be greater, smaller, or the...
What is the change in gravitational potential energy of a 50-kg person who climbs a flight of stairs with a height of 5 meters and a horizontal extent of 6 meters? A. 250 J B. 300 J C. 2500 J D. 3000 J
12 A 60.0-kg woman who runs up a 3.00 m high flight of stairs in 3.50 s, starting from rest but having a final speed of 2.00 m/s? What is the final potential energy. A) 126 J B) 110W C) 153 J D) 120 J E) 140 J 13 A 100 g ball move upward with a velocity of 10 m/s from ground level in a free fall movement. What is the kinetic energy for the ball at ground level?
Two astronauts, each having a mass of 70.0 kg, are connected by a 9.0 m rope of negligible mass. They are isolated in space, orbiting their center of mass at speeds of 5.50 m/s. (a) Treating the astronauts as particles, calculate the magnitude of the angular momentum. (kg·m2/s) (b) Calculate the rotational energy of the system. (c) By pulling on the rope, one of the astronauts shortens the distance between them to 5.00 m. What is the new angular momentum...
A 70.0-kg football player runs North at 9.0 m/s and is met by a 60.0 kg defensive tackler running South at 10.0 m/s. The total momentum is?
A young boy, named Harry, climbs to the top of a 20.0-meter-high water slide at an amusement park. Harry weighs 450.0 N. You can neglect friction when Harry slides down the water slide because of the water that flows down with him. Assume that it takes Harry an average of 45 seconds to climb the stairs that lead to the top of the water slide and about 5.5 seconds to slide down the slope of the water slide. What is...
2. -1 points 16 7,1.P.002. 0/6 Submissions Used A 82.0 kg person climbs stairs, gaining 3.20 meters in height. Find the work done (in J) to accomplish this task P O6 Submissions Used ronstant speed, assuming friction averages 245 N.