You want to move a 400-N crate across a level floor by pulling upward on the rope at an angle of 30o above the horizontal. How hard must you pull to keep it moving with an acceleration of ax = 0.5 m/s2 ? Assume that μk = 0.30. Q2/ You want to move a 400-N crate across a level floor by pulling upward on therope at an angle of 30° above the horizontal. How hard must you pull to keep itmoving with an acceleration of a, = 0.5 m/s² ? Assume that p = 0.30.30°

Name: You want to move a 400-N crate across a level floor by pulling upward
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: You want to move a 400-N crate across a level floor by pulling upward on the rope at an angle of 30o above the horizontal. How hard must you pull to keep it moving with an acceleration of ax = 0.5 m/s2 ? Assume that μk = 0.30. Q2/ You want to move a

mg=400 Ng=10m/s2m=40KgFx=F cosθ-fsFx=maxmax=F cos…

Science

Physics

Q2/ You want to move a 400-N crate across a level floor by pulling upward on the rope at an angle of 30° above the horizontal. How hard must you pull to keep it moving with an acceleration of a, = 0.5 m/s² ? Assume that µ = 0.30. %3D 30°

Q2/ You want to move a 400-N crate across a level floor by pulling upward on the rope at an angle of 30° above the horizontal. How hard must you pull to keep it moving with an acceleration of a, = 0.5 m/s² ? Assume that µ = 0.30. %3D 30°

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter5: Further Applications Of Newton's Laws: Friction, Drag, And Elasticity

Section: Chapter Questions

Problem 5PE: (a) If half of the weight of a small 1.00103 kg utility truck is supported by its two drive wheels,...

See similar textbooks

Similar questions

(a) If half of the weight of a small 1.00103 kg utility truck is supported by its two drive wheels, what is the magnitude of the maximum acceleration it can achieve on dry concrete? (b) Will a metal cabinet lying on the wooden bed of the truck slip if it accelerates at this rate? (c) Solve both problems assuming the truck has four-wheel drive.
A weight lifter stands on a bathroom scale. (a) As she pumps a barbell up and down, what happens to the reading on the scale? (b) Suppose she is strong enough to actually throw the barbell upward. How does the reading on the scale vary now?
A Suppose you place a block of mass M on a plane inclined at an angle . Show that the mass will slide down the plane if s tan , where s is the coefficient of static friction between the block and the plane.
A setup similar to the one shown in Figure P4.53 is often used in hospitals to support and apply a traction force to an injured leg. (a) Determine the force of tension in the rope supporting the leg. (b) What is the traction force exerted on the leg? Assume the traction force is horizontal. Figure P4.53
1. You are tasked with designing the runway on an aircraft carrier. The minimum speed for the F/A18 Hornet is 200 mph. The Hornet weighs 40,000 lbf and its twin engines provide a thrust of ~40,000 lbf combined, providing a max acceleration of 1g.a. How long must the deck be to takeoff unassisted? Give the answer in ft. b. This is most likely longer than your typical ~450 ft carrier. What acceleration must you achieve with both the engines and with a catapult system together to reach the required minimum speed by the end of the deck? c. What net force (combined engines and catapult) must be applied to the plane to get the acceleration in b? d. Do you think the plane will be able to use disk brakes on its tires to stop when landing?Use your knowledge of friction to make your argument. Also know that their coefficient of friction is ~1.
Fast pls in 10 lin i will give u like for sure 17. Assume a water strider has a roughly circular foot of radius 0.0101 mm. The surface tension of water is 0.0700 N/m. What is the maximum possible upward force on the foot due to surface tension of the water? N
5. A mass of 10kg sits on a level surface. One end of the surface is raised until the block begins to slide down the ramp at a constant velocity and angle of 20⁰. a. What is the coefficient of friction between the block and the incline plane? b. What is the weight of the Block,w?
1. What is the magnitude of the pumpkin's acceleration during the first part of the fall? 2. What is the strength of the drag force while the pumpkin falls with terminal speed?
1. How long does a ball return to the thrower if it was given an initial vertical velocity of 80 ft/s? 2. Determine the amount of force (parallel to the inclination) required to prevent a 250 lb box from sliding down a 36.87 degree inclined plane, when the coefficient of static friction is 0.15. 3. What is the acceleration of a car which uniformly increases its speed from 13 km/hr to 50 km/hr in 25 seconds?
1. A car travels at a steady 40.0 m/s arounda horizontal curve of radius 200 m. a) Draw a FBD and apply Newton's Laws. b)What is the minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at this speed without sliding?
Q2;A horizontal force of 87.2 N is applied to a 40.5 kg crate on a rough, level surface. If the crate accelerates at 1.23 m/s2, what is the magnitude of the force of kinetic friction (in N) acting on the crate? HINT N
(II) At the instant a race began, a 65-kg sprinter exerted a force of 720 N on the starting block at a 22° angle with respect to the ground. (a) What was the horizontal acceleration of the sprinter? (b) If the force was exerted for 0.32 s,with what speed did the sprinter leave the starting block?