(II) A car drives straight down toward the bottom of a valleyand up the other side on a road whose bottom has a radius ofcurvature of 115 m.At the very bottom, the normal force on thedriver is twice his weight. At what speed was the car traveling?
Q: A load of 500 kg is pulled along level ground at constant speed by a pull of 1.5 kN at an angle of…
A: The net force acting on the load is, ∑F=0F-μmgcosθ=0F=μmgcosθμ=Fmgcosθ
Q: (a) Calculate the minimum coefficient of friction needed for a car to negotiate an unbanked 50.0 m…
A: Formula of coefficient of friction is as follows; μ=tanθ=v2rg…
Q: Which is greater? Which has a greater horizontal component, a 100-N force directed at an angle of…
A:
Q: *4-116. Replace the three forces acting on the shaft by a single resultant force. Specify where the…
A: Solution:-Given that
Q: (II) What average force is needed to accelerate a 9.20-gram pellet from rest to 125 m/s over a…
A: Given data:Note: 1000 gm =1 kg.mass of pellet (m) = 9.20 gm = 9.20×10-3 kg.Initial velocity (u) = 0…
Q: Determine the speed v which the 565-kg four-man bobsled must have in order to negotiate the turn…
A: Solution:-Given thatmass of bobsled (m)=565 kg
Q: A unloaded car moving with velocity u on a frictionless road can be stoppėd in 'a distance s. If the…
A:
Q: (a) If half of the weight of a small 1.00×103kg utility truck is supported by its two drive wheels,…
A: The weight of the truck is The normal force of each wheel is half the weight of the truck as weight…
Q: 6 m 3m 4 'm 4 m 4 m 6 m 3 m m 4m Determine the tension developed in the three cables required to…
A: Given:Mass ,m=20 kgHeight,h=3.5 mFind the tension developed in the three cables.
Q: Does the static friction between two surfaces depend on the size of the surface?
A:
Q: (I) A force of 35.0 N is required to start a 6.0-kg box moving across a horizontal concrete floor.…
A: When a frictional force acts between two bodies in contact but are not moving with respect to each…
Q: (a) If half of the weight of a flatbed truck is supported by its two drive wheels, what is the…
A:
Q: 8. (II) How large must the coefficient of static friction be between the tires and the road if a car…
A: Given Radius of the curve r = 125 m speed of the car v = 95 km/h To find the coefficient of static…
Q: (1b) A worker grabs a 68 kg crate across a floor by Pulling on a rope inclined 17º above the…
A: Here given a workergrabs a 68 kg crate.The rope inclined 17° above the horizontal. The coefficient…
Q: What is the coefficient of kinetic friction?
A:
Q: Calculate the acceleration of a block of mass 1.75Kg placed on a 30º inclined plane. Between the…
A:
Q: (1) A skier of mass m slides up a hill for a distance d along surface coved with snow till it shops.…
A: Given Force ( f ) = ρv2 Angle = θ
Q: 13-8. What force does a 180-1b man exert on the floor of an elevator that is moving downward and…
A: The objective of the question is to find the force exerted by a man on the floor of an elevator that…
Q: What minimum coefficient of friction is required if there is a 60.0 km/h speed limit for a flat…
A:
Q: Will the car hit the squirrel?
A:
Q: How much time does it take for a rock dropped from a cliff to fall 180 meters? Assume no air drag.
A: Initial velocity (u) = 0 m/s height of cliff (h) = 180 m
Q: A car is travelling at 50.0 km/h on a flat highway. (a) If the coefficient of frictin between road…
A: Given : vo = 50.0 km/h = 50.0(1000/3600) = 13.9 m/s v = 0 m/s (because finally the car stops)
Q: (b) The coefficient of static friction between Teflon and scram- bled eggs is about 0.04. What is…
A: Give The coefficient of static friction between Teflon and scrambled eggs is about 0.04.
Q: An object of mass 5kg is sliding with a constant velocity of 10m/s on a frcitionless horizontal…
A: Given Mass = m = 5 kg Velocity = v = 10m/s Force (F) needed ro keep the object moving with same…
Q: (II) A Ferris wheel 22.0 m in diameter rotates once every12.5 s (see Fig. 5–9). What is the ratio of…
A:
Q: . Two blocks of masses m, =4 kg and m, =2 kg are connected to the ends of a string which passes over…
A:
Q: Calculate the normal force acting on the 3kg crate.
A:
Q: An airboat with mass 450 kg, including the passenger, has an engine that produces a net horizontal…
A:
Q: (II) A particular race car can cover a quarter-mile track (402m) in 6.40s starting from a…
A: We have to determine the acceleration experienced by the driver, and the horizontal force exerted by…
Q: A boat is being towed at the rate of 12 mi/hr. At the instant (t=0) that thetowing line is cast off,…
A: Given,dvdt=12 mi/hrF=20 lbweight (man+boat) W=480 lbresistance R=1.75v
Q: 47. (II) In Fig. 4-56 the coefficient of static friction between mass mA and the table is 0.40,…
A:
Q: Consider the 58.0 kg mountain climber in the figure. 31° Flegs 15° (a) Find the tension in the rope…
A:
Q: 6) a 2000kg pick up truck experiences 150N of air resistance and a 200N of rolling resistance (this…
A: a)The car is travelling at a constant speed 30m/s. Thus, the car will not have any acceleration.…
(II) A car drives straight down toward the bottom of a valley
and up the other side on a road whose bottom has a radius of
curvature of 115 m.At the very bottom, the normal force on the
driver is twice his weight. At what speed was the car traveling?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- If a horizontal force of 90N was needed to keeps an object weighing 250N sliding at constant speed 30 m/s over horizontal surface, then what was the coefficient of sliding friction?(II) How large must the coefficient of static friction bebetween the tires and the road if a car is to round a levelcurve of radius 125 m at a speed of 95km/h ?(II) Two snowcats in Antarctica are towing a housing unit north, as shown in Fig. 4–50. The sum of the forces F→A and F→B exerted on the unit by the horizontal cables is north, parallel to the line L, and FA = 4500 N. Determine FB and the magnitude of F→A+F→B.
- Asap1. Two blocks are connected by a massless rope as shown below. The mass of the block on the table is m₁ and the hanging mass is m₂. The table and the pulley are frictionless. a₁ y m₁ X 3 Subpart 1: Draw FBDs In your notebook, draw free body diagrams for m, and m₂ using the template as shown below. The forces acting on the system are weights of the blocks, m₁g, and mêg, the tension in the string T and the normal reaction N₁ of the table on m₁. m m₂ Subpart 2: Set up Newton's Second Law Equations a2 m₂. A car is traveling at 50.0 km/h on a flat highway. (a) If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop? (b) What is the stopping dis- tance when the surface is dry and the coefficient of friction is 0.600?
- Asap plzzzz(c) The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.25 with the floor. If the train is initially moving at a speed of 48 km/h, in how short a distance can the train be stopped at constant acceleration without causing the crates to slide over the floor?Suppose a car accelerates from 69 to 112 km/h? By what percent does the drag force on a car increase?