Work = (force) x (distance) = m g H = (90) x (9.807) x (6) = 5,295.78 joules
Power = work/time = 5,295.78/3 = 1,765.26 watts = 2.366 horsepower
A physically impossible feat, but the math is bullet-proof.
5 meters
approx. 50 seconds
19.6 meters / 64.4 ft
Distance of fall in T seconds = 1/2 g T2Distance of fall in 2 seconds = (1/2) (9.8) (2)2 = (4.9 x 4) = 19.6 metersHeight of this particular ball after 2 seconds = (70 - 19.6) = 50.4 meters
50 meters in 10 seconds is faster. you go 5 meters per second in 50 meters per second, and you go 6 meters a second in 5 seconds..
cos60=4.2cm/x x=4.2cm/cos60 x=8.4cm Therefore the height of the ladder is 8.4cm. However, i think you mean meters because that is a very tiny ladder lol.
15 meters, or less, depending on the angle.
At least 3,500 joules, if his climbing effort is 100% efficient, but probably more than that.
5 meters
5 meters
approx. 50 seconds
19.6 meters / 64.4 ft
6.71 meters.
The time required for a stone to fall from a given height can be calculated mathematically. Time equals the square root of two times the distance divided by force of gravity. Time is in seconds, distance in meters, and the force of gravity on Earth is 9.8 meters/second ^2.
Distance of fall in T seconds = 1/2 g T2Distance of fall in 2 seconds = (1/2) (9.8) (2)2 = (4.9 x 4) = 19.6 metersHeight of this particular ball after 2 seconds = (70 - 19.6) = 50.4 meters
Height (feet): 25550; Height (meters): 7788
Power = (energy) / (time) =(200 newtons x 4 meters) / (4 seconds) =200 newton-meters per second = 200 watts