If the coefficient of kinetic friction between a 343 N crate and the floor is 0.30, what is the force of friction experienced? Show all work and unit

A block is given an initial velocity of 5.00 m/s up a frictionless incline of angle of 20.0°. How far up the incline does the block slide before coming to rest? Answer: 3.73 m

(a) Calculate the force needed to bring a 850 kg car to rest from a speed of 90.0 km/h in a distance of 105 m (a fairly typical distance for a nonpanic stop).N(b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a), i.e. find the ratio of the force in part(b) to the force in part(a).(force in part (b) / force in part (a))

1. Boxing gloves are padded to lessen the force of a blow. The glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. Think & Prepare 1. Make note of what's given and what's unknown. Relate known quantities to symbols. 2. Draw a labeled sketch if possible. 3. Identify the physics principle and approach. Write down relevant equations symbolically. Simplify if possible. 4. Insert numerical quantities to solve for unknowns. 5. Does the answer make sense? (a) Calculate the change in kinetic energy of the glove and arm. Enter to 3 significant figures AKE= Note: AKE = KE final-KE initial (b) Where does this energy go? J into doing work against the force exerted by the face against the glove into doing work against gravity into the potential energy of the face O into the potential energy of the glove and arm (c) Calculate the force exerted on the boxing glove by the opponent's face. Consider the relative…

Format of the output: GRESA (Given, Required, Equation, Solutions, Answer) 1. What is the net work of a system if there is an applied force pushing it at a value of (GIVEN A)N at a distance of (GIVEN B)m if there is a resisting force caused by the surface of a floor having a coefficient of kinetic friction value of (GIVEN C)? The mass of the object is (GIVEN D)kg. What is the final velocity of the object upon reaching the last point of the distance covered? Express work in proper scientific notation.

MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.880 m/s encounters a rough horizontal surface of length l = 0.65 m as in the figure below. If the coefficient of kinetic friction between the crate and rough surface is 0.351 and he exerts a constant horizontal force of 293 N on the crate. (a) Find the magnitude and direction of the net force on the crate while it is on the rough surface. magnitude N direction --Select--- (b) Find the net work done on the crate while it is on the rough surface. (c) Find the speed of the crate when it reaches the end of the rough surface. m/s

rough surfice Smath swace leeeeed 2.50m he 3.00m E; Ei + WNc A 34.2 kg block slides with a velocity of 10.22 m/s to the right on a frictionless surface (as shown in the figure above). The block slides up a slope to a height of 3.00 m and then slides across a 2.50 m long rough surface with a coefficient of kinetic friction equal to 0.325. The block continues to travel to the right and bumps into a massless spring with a spring constant (k) equal to 2320 N/m. a) How much does the spring get compressed by the block with respect to its equilibrium length? Please answer with a positive number in units of metres, with 3 sig figs. Start with conservation of energy: E, = E; + WNC , and show all steps. b) What is the potential energy stored by the spring when the mass comes to a stop? Please show the symbolic equation and then "plug in the numbers" to give a numerical answer in units of joules with 3 sig figs. c) What happens to the potential energy stored in the spring after the block stops…

The coefficients of friction between the load and the flat-bed trailer shown are 0.35 (static) and 0.30 (kinetic). Knowing that the speed of the rig is 72km/h, determine the shortest distance in meter in which the rig can be brought to a stop if the load is not to shift. 10 ft