18 days ( 17 x (3 - 2) + 1 x 3)
Each (day + night) he moves 1 foot closer to the top.After 14 (day + night)'s, he is 14 feet closer to the top = 3 feet from the top.On the 15th day, he climbs 3 feet, reaches the top, falls out on the ground, and expires from starvation.15 days.
a bruise.
A falling stone will increase in speed until it reaches it's terminal velocity, the speed when the downward force of gravity equals the upward force of drag, which causes the net force on the stone to equal zero, thus achieving an acceleration of zero. If atmosphere is ignored, a falling body will accelerate at 32ft/s (9.75m/s). The distance traveled in the first second would be 16 feet (4.87m), in the second second: 48 feet (14.63m) and in the third second: 80 feet (24.38m); hence after three seconds an object would have fallen 144 feet (43.89 meters) and is traveling at 96ft/s (29.26m/s).
30 days
It was thought that High Force (at 71 feet) is the highest waterfall in England, however - Cautley Spout (in Cumbria) is higher (590 feet). Other falls of notable heigh are Hadraw Force in N. Yorks (98 feet) and Fell Beck Falls drops down Gaping Hill Hole to a depth of 315 feet.
Walking is a mechanical force generated by the muscles in our body contracting and relaxing to move our limbs. It is a type of kinetic friction force between our feet and the ground that propels us forward.
American Falls - 176 feet Canadian "Horseshoe" Falls - 167 feet
The force of friction between the person's shoes and the sidewalk prevents their feet from slipping. Friction is generated by the contact between the irregularities on the shoe sole and the rough texture of the sidewalk surface, providing the necessary grip for walking.
American Falls - 176 feet Canadian "Horseshoe" Falls - 167 feet
The Falls vary in height from 262 feet to 304 feet
Shoshone Falls in Idaho is higher than Niagara Falls. Shoshone Falls stands at 212 feet while Niagara Falls is about 167 feet.
Yosemite Falls in California has a drop of 2,425 feet. Colonial Creek Falls in Washington has a drop of 2,584 feet. Waihilau Falls on the big island of Hawaii has a drop of 2,600 feet. Pu'uka'oku Falls in Hawaii has a drop of 2,756 feet. Olo'upena Falls on Molokai Hawaii has a drop of 2,953 feet. Angel Falls in Venezuela holds the world record at 3.212 feet.
frictional force which is generated due to interlocking of minute roughness of slipper / shoes/foot with those of floor
The American Falls are 70 feet due to the rocks being at the bottom but if they were not there it would be a 93 feet drop from top to bottom. The Canadian Falls are 167 feet so the American Falls are more than half the size of the Canadian Falls.
Angel Falls in Venuzuela.
5604 feet