A crate of mass 16.0 kg rests on a level surface. If the coefficient of kinetic friction between the crate and surface is 0.410, calculate the following. (a) Calculate the normal force. (Give the magnitude.) (b) Calculate the magnitude of the kinetic friction force when a horizontal applied force of 72.0 N moves the crate. (c) Calculate the normal force when the 72.0-N applied force is exerted at an angle of 37.5° above the horizontal. (Give the magnitude.) (d) Calculate the magnitude of the kinetic friction force when the 72.0-N applied force is exerted at an angle of 37.5° above the horizontal.

Current Attempt in Progress There are two forces on the 2.92 kg box in the overhead view of the figure but only one is shown. For F₁ = 22.7 N, a-14.0 m/s², and 8 = 37.4%, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative angle measured from the +x direction) 7

A block with a mass of 6.18kg slides down a ramp inclined at 30.0o.  The coefficient of kinetic friction between block and ramp is uk=0.490. The kinetic friction force acting on the block as it slides has a magnitude of ________N.

A block weighing 38 kg is on an incline with a slope of 17o. If the block is at the verge of sliding down the incline, what is the static frictional force of resistance? A block weighing 25 kg is on an incline with a slope of 28o. If the block is at the verge of sliding down the incline, what is the static friction coefficient?

A pack of four velociraptors have caught a human running through their jungle. Each raptor grabs one limb and pulls as hard as it can. One raptor exerts a force of 50.0 N at an angle of 20.0 ̊. Another exerts a force of 30.0 N at an angle of 130.0 ̊, while a third exerts a force of 90.0 N at 160.0 ̊. If the meal remains stationary, i.e. the total force is 0, at what angle and with what force is the fourth raptor pulling? Note that force is a vector. Force is measured in units called Newtons which is abbreviated N.

A 5kg crate is simultaneously acted upon by a force of 60N acting to the right that is parallel to the surface, and a force of 10N acting to the left, which makes a 30 degree angle with the horizontal. If the coefficient of kinetic friction is 0.15, then the magnitude of the acceleration of the crate is about _____ m/s2.

Two hockey players check an opponent into boards simultaneously. Player 1 hits from the left at an angle of 37 degrees to horizontal and a force of 400N. Player 2 hits from the left at an angle of 41 degrees to horizontal and a force of 600N. What is the magnitude and direction of total force applied to opposing player

A 1,420-N crate is being pushed across a level floor at a constant speed by a force F of 350 N at an angle of 20.0° below the horizontal, as shown in the figure a below. F F 20.0° b (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) 20.0⁰ (b) If the 350-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in the figure b, what will be the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part (a). m/s² Need Help? Read It

A 1,480-N crate is being pushed across a level floor at a constant speed by a force of 350 N at an angle of 20.0° below the horizontal, as shown in the figure a below. F 20.0° / 20.0° a b (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.) (b) If the 350-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in the figure b, what will be the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part (a). m/s²

A crate of mass 18.0 kg rests on a level surface. If the coefficient of kinetic friction between the crate and surface is 0.430, calculate the following. (a) Calculate the normal force. (Give the magnitude.) 176.58 (b) Calculate the magnitude of the kinetic friction force when a horizontal applied force of 92.0 N moves the crate. 75.93 N (c) Calculate the normal force when the 92.0-N applied force is exerted at an angle of 37.5° above the horizontal. (Give the magnitude.) X N (d) Calculate the magnitude of the kinetic friction force when the 92.0-N applied force is exerted at an angle of 37.5° above the horizontal. X N