pulling yourself up

Q: A person on horse's back tends to fall back if the horse starts running all of sudden. Why?

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Q: As relative velocity goes down , the fluid force acting on an object decreases linearly.   is this…

A: Drag force is given by  Where, FD is the drag force CD is the drag coefficient ρ is the density of…

Q: If the two ends of a rope in equilibrium are pulled with forces of equal magnitude and opposite…

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Q: A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average…

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Q: If you press a book flat against a vertical wall with your hand, pushing on the book strictly…

A: Frictional force between book and the wall keeps the in place. The direction of frictional force is…

Q: A force F of magnitude 920 lb is applied to point C of the bar AB as shown. Determine both the x-y…

A: A force F of magnitude 920 lb is applied to point C of the bar AB as shown in the figure. We need to…

Q: What is the average force exerted on the nail?

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Q: Why isn't the total tension in a rope zero when the two ends are pushed in different directions?

A: Given: Forces equal in magnitude but opposite in direction are applied to two ends of a rope.…

Q: A helium balloon floats in midair, without climbing or lowering. Is it in balance? What forces are…

A: Gravity does pull the balloon down.   Gravity also pulls the air around the balloon down.   The…

Q: A helium balloon floats in midair, without climbing or lowering. Is it in balance? What forces are…

A: Helium floats because its molecules are lighter than nitrogen and oxygen molecules in our…

Q: A weight lifter holds 900N over his head ?why?

A: To determine  a weighs lifter holds 900N over his head