Please help me answer the following questions.

A horizontal force of 89.7 N is applied to a 40.5 kg crate on a rough, level surface. If the crate accelerates at 1.13 m/s, what is the magnitude of the force of kinetic friction (in N) acting on the crate? HINT N Need Help? Read It Watch It [-/3 Points] DETAILS SERCP11 4.3.P.022. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A student of mass 63.4 kg, starting at rest, slides down a slide 17.2 m long, tilted at an angle of 20.10 with respect to the horizontal. If the coefficient of kinetic friction between the student and the slide is 0.133, find the force of kinetic friction, the acceleration, and the speed she is traveling when she reaches the bottom of the slide. (Enter the magnitudes.) HINT (a) the force of kinetic friction (in N) N "b) the acceleration (in m/s2) m/ s 2 (c) the speed she is traveling (in m/s)9. [-/2 Points] DETAILS SERCP11 4.3.P.024. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A block of mass m = 5.7 kg is pulled up a 0 = 220 incline as in the figure below with a force of magnitude F = 36 N. Se (a) Find the acceleration of the block if the incline is frictionless. (Give the magnitude of the acceleration.) m/s (b) Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.11. (Give the magnitude of the acceleration.) m/s Need Help? Read It10. [I1 Points] DETAILS SERCP11 4.4.0P.031. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The figure below shows a box with a mass of m = 3.55 kg on a surface inclined at an angle of 35.0. The coefcient of static friction between the box and the surface is 0.350. Find the minimum magnitude of the force F (in N), applied to the box in a direction perpendicular to the surface, that will prevent the box from sliding down the surface. Need Help? nun 11. [-12 Points] DETAILS SERCP11 4.4.P.026. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A man exerts a horizontal force of 143 N on a crate with a mass of 31.2 kg. HINT (a) If the crate doesn't move, what's the magnitude of the static friction force (in N)? | N (b) What is the minimum possible value of the coefficient of static friction between the crate and the floor? (Assume the crate remains stationary.) l Need Help? i an\" mu 12. [-/2 Points] DETAILS SERCP11 4.4.P.029. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A dockworker loading crates on a ship finds that a 27-kg crate, initially at rest on a horizontal surface, requires a 74-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor. static friction kinetic friction Need Help? Read It 13. [-/4 Points] DETAILS SERCP11 4.6.OP.046. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A box with a mass of 3.00 kg starts from rest at the top of a 33.50 incline and slides 2.00 m down the incline in 1.30 s. (a) What is the magnitude of the acceleration of the box (in m/s2)? m / s 2 (b) What is the frictional force (in N) acting on the box? (Enter the magnitude.) (c) What is the coefficient of kinetic friction between the box and the incline? (d) What is the speed of the box (in m/s) after it has slid 2.00 m? m/s Need Help? Read It