A brave but inadequate rugby player is being pushedbackward by an opposing player who is exerting a force of800 N on him. The mass of the losing player plus equipmentis 90.0 kg, and he is accelerating at 1.20 m/s2backward.(a) What is the force of friction between the losing player’sfeet and the grass? (b) What force does the winning playerexert on the ground to move forward if his mass plusequipment is 110 kg? (c) Draw a sketch of the situationshowing the system of interest used to solve each part. Forthis situation, draw a free-body diagram and write the netforce equation

Q: A high diver of mass 65.8 kg steps off a board 10.0 m above the water and falls vertical to the…

A: Use the kinematic equation to solve for the velocity of the diver when she touches the water.

Q: A boat moves through the water with two forces acting on it. One is a 1800 N forward push by the…

A: force on boat ,F = 1800 Nrestive force on boat ,f = 1000 NMass of the boat is ,m =  1300 Kg

Q: A boat moves through the water with two forces acting on it. One is a 1500 N forward push by the…

A: Here, we calculate  the given as follow;

Q: Tim pushes a 195kg lawnmower with a force of 850N at an angle of 35 degrees with respect to the…

A:

Q: Under certain conditions, the human body can safely withstand an acceleration of 10 g. (a) What net…

A: Newton's second law state that the force acting on a body resting on a surface  is the product of…

Q: A figure skater has a mass of 40 kg and her partner's mass is 50 kg. She pushes against the ice with…

A: where, N=normal forceMg=weight a=accelerationFa=applied forceFr=air resistanceFf=friction

Q: The human head can be considered as a3.3-kg cranium protecting a 1.5-kg brain, with a small amount…

A: Given: Weight of the human head = 3.3 Kg Weight of the brain = 1.5 Kg Force applied = 2800 N

Q: highway under the acceleration of two forces. One is 1165 N forward force expected on the drive…

A:

Q: The rocket sled  accelerates at arate of 49.0 m/s2. Its passenger has a mass of 75.0 kg.…

A:

Q: You want to push your 53.0 kg friend up the 33.0° ramp of a slide in a nearby park. You do so by…

A:

Q: If the rocket sled  starts with onlyone rocket burning, what is the magnitude of its…

A: (a) Apply Newton’s second law

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.51 m/s2. If the river is…

A: Initial velocity = 0 msAcceleration (a) = 1.51 ms2Force (F) = 0.79 N

Q: Commercial airplanes are sometimes pulled out of the passenger loading area by a tractor. (A) And…

A: Force exerted by tractor, F bacward = 1.75 x 104 N Force experienced in resisting motion, F…

Q: Batman is driving his 1900 kg Batmobile down the hill from the Bat Cave. The hill is inclined at an…

A: By fbd of block  MgSin20° + F - ukMgCos20° = Ma  F = M(a + ukgCos20° - gSin20°)  F = 1900 ( 5 +…

Q: A 1100-kg car pulls a boat on a trailer. (a) What total forceresists the motion of the car, boat,…

A: a)The diagram of the car is shown below. The net force on the car is given by,

Q: Just after opening a parachute of negligible mass, a parachutist of mass 90.0 kg experiences an…

A: Given: Mass of  parachutist (m) = 90 kg Upward acceleration (a)= 1.00 m/s2 Weight of parachutist (W)…

Q: ckey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle does the…

A: We know that We have given that The hockey puck slides down a frictionless ramp with an acceleration…

Q: a boat moves through the water with two forces acting on it. one is 1875-N forward push by the water…

A: Given data:  Forward push Force (F) = 1875 N Resistive force (f) = 1200 N Mass (m) = 1100 kg Time…

Q: 1. a) A speed boat moves through the water with two forces acting on it. One is a 2200N forward push…

A: Given: The force that is applied by the water on the propeller = 2200 N The force due to water…

Q: A soccer player starts from rest and accelerates forward, reaching a velocity of 9.00 m/s in 3.00 s.…

A: The equation of motion is, v = u + at9m/s =0+a3.0sa=3m/s2

Q: Maggie‘s new truck can accelerate from rest to 15.00m/s in 4.900 s. If the Maggie’s mass is 75.0 kg…

A: final speed, v=15.00 m/stime taken , t=4.900smass of maggie, m=75.0kgmass of truck , M=1800 kg

Q: A child’s wagon with rubber tires is being pulled along a street. The wagon and its load have a…

A: Given that: m=28 kg μ=1.07 a=0.50 m/s2t=22 s

Q: A boy pulls a carriage with a force of 20N by a thick rope making an angle of 25° with the…

A: Neglect friction since the coefficient of friction isn't given Free body diagram

Q: On a beautiful winter Sunday, you drag your two nieces in a sleigh on a snowy sidewalk. You pull on…

A: Given that:m1=25 kgm2=15 kgF=50 Nθ=30°

Q: A person in a boat starts paddling, and it accelerates from 0 to 0.70 m/s in a distance of 0.51 m.…

A: Given,  mass of boat ,m = 83 kg distance, s = 0.51m Initial velocity, u = 0m/s Final velocity ,v =…

Q: onstant force of friction opposing your push of 75.0 N. As you push the box, it accelerates from…

A: Given: The mass of the object is 50 kg. The friction force is 75 N. The initial velocity of the…

Q: A 1370 kg car is skidding to a stop along a horizontal surface. The car decelerates from 25 m/s to a…

A: Initial speed, u = 25 m/s Final speed, v = 0 m/s Time, t = 2 s Mass of the car, M = 1370 kg…

Q: A 1250 kg boat is traveling at 90 km/h when its engine is shut off. The magnitude of the frictional…

A: Using Newton’s second law of motion,

Q: A block with mass of m1 = 2 kg is placed on top of a block with a mass m2 = 4 kg. A horizontal force…

A: Given data The mass of the upper block is: m1 = 2 kg The mass of the lower block is: m2 = 4 kg The…

Q: The left ventricle of the human heartexpels about 0.070 kg of oxygenated blood straight upward…

A: Given data The mass of the blood is m = 0.070 kg. The force applied by the ascending aorta is F =…

Q: 1. a) A speed boat moves through the water with two forces acting on it. One is a 6000N forward push…

A: a)Forward force =6000 N resistive ( backward force) = 5500 N mass of boat = 3000 kg

Q: A horizontal force of 4770 N is required to give a 1270 kg car an acceleration of 0.175 m/s2 on a…

A:

Q: you are standing on a train which begins to accelerate away at 4.50 m/s. If you have a mass of 70…

A: acceleration (a) = 4.50 ms2mass = 70 kg

Q: (a) What is the tension in the rope? (b) What is the normal force with which the snow pushes…

A: Solution: a). The tension in the rope is due to the friction present across the connecting surfaces.…

Q: A dockworker loading crates on a ship finds that a 20.0-kgcrate, initially at rest on a horizontal…

A: Let the mass of the crate be denoted by m. Let the coefficient of static friction be denoted by μs…

Q: A boat moves through the water with two forces acting on it. One is a 1,950-N forward push by the…

A: Given, force on boat F = 1990 N restive force on boat f = 1300 N Mass of the boat is m =  1200 Kg…

Q: a car of mass 2.0*10^3 kg is initialy moving at 21 m/s when the brakes are applied and the car is…

A:

Q: A 4.0 x 103 kg motor boat starts from a dock and begins to accelerate under a 2.0 x 104 N forward…

A: Given              mass of motor boat = (m) = 4.0×103kg               forward force applied by motor…

Q: A sprinter (mass of 85 kg) pushes against the blocks with a resultant force of -2500 N at an angle…

A: Given, Mass of sprinter m = 85 Kg Resultant force F = 2500 N Angle θ=15∘

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: