PHYS 1375 Chapter 13 Pressure Name 1) A football player is tackled by another pl

Question

PHYS 1375 Chapter 13 Pressure Name 1) A football player is tackled by another player and lands with the his knee. If the combined combined weght of both players on measuresim by .3 of the players is2400 N and the players knee m, how much pressure is exerted on the turf when the player lands on his knee? (p -F/A) (Pressure-P A- Area, Force-F) as a densit 2) A forestry worker accidentally strikes a pipe with the end of a pickaxe while trying to die a hole. if the pickaxe strikes with a force ot 2000 N and the end of the pickae measure 0.02 m by 001 m, how much pressure is exerted on the pipe by the pickaxe? (P F/AD in gas e ,000 d is 3) A skateboarder lands on all four wheels after riding a railing. If the skateboarder has a weight 6900 and the area on the bottom of a single wheel is 0.0001 m2, what pressure does the skateboard put on the ground? Acube of steel that measures 5.0 crm on each side is immersed in water. The density of steel 690 t is the buoyant force acting on the cube? Buoyant Force-dVg (d-density V-Volume and g-gravity) 5) A 500 g of steel is able to float in water. That is the steel has the same density as water. Determine what the weight density of the steel is in this water. 6)AS00 Nweight was applied to a surface area of so cm of a hydraulic lift. If the mass on the other side of the lift was5,000 how large would the surface area need to be to ift that mass? (Pin- Pout) 7)A 95 Nweight was applied to a surface area 1 m' of a hydraulic lift. If the surface area on the other side was 1 cm2 what would be the mass it could lift:

Explanation / Answer

1) F(force) = weight = 2400 N

A(area) = 0.1*0.1 = 0.01 m2

P(pressure) = F/A

P= 2400 / 0.01

P= 240*103 N/m2

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