A car is traveling along at 20 m/s when it suddenly slams on its brakes. If the mass of the car is 1000 kg and the braking force is 2000 N: a) What is the acceleration of the car? b) How far will the car skid before stopping?

Q: a 75 kg bodsled is pushed along a horizontal surface by two athletes. after the bobsled is pushed a…

A: The acceleration of the body can be calculated from the equation of motion a follows, v2=u2+2ad6…

Q: A 20 kg box is pushed on a flat horizontal floor with a frictional force of 5 N. How far will the…

A: mass of box = 20 Kg Frictional force = 5 N acceleration = - friction/mass  = - 5 /20  = - 0.25 m/s2…

Q: A roller coaster have a velocity of 9.5 m/s as it goes thru a loop where R = 6.7 meters.  What…

A:

Q: A machine gun fires 35.0g bullets at a speed of 750.0 ms-1. If the gun can fire 200 bullets/ min,…

A: Solution: given that m = 35 g v = 750 m/s fire 200 bullets/ min

Q: If the net force on a 10 kg object is 40 N, what can we say about this object? The object will be…

A: Given data:  Mass (m) = 10 kg Net Force (Fnet) = 40 N Required:  Acceleration (a)

Q: What is the magnitude of the net force needed to bring a 2085 kg car to rest from 25.6 m/s in 9.3…

A: Solution: Given that mass m= 2085 kg vinitial = 25.6 m/s time t = 9.3 s to find the force required

Q: A 1500 kg car is driving at 20 m/s. The driver wishes to stop over a distance of 30 m. What force…

A: Mass of car = 1500kg Initial velocity of car =20m/s Final velocity of car=0 Discover covered by…

Q: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

A: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

Q: A car traveling at 20 m/s runs into a bridge abutment and crumples for 1.2 m before coming to a full…

A: Given: The intial speed of the car is 20 m/s. The distance traveled by car is 1.2 m. The final speed…

Q: Mr. Comer's Jeep has a mass of 1800kg. He is driving down the road when he sees that there is an…

A:

Q: A race car driver is told that her new tires will increase the frictional force between the tires…

A: Let the original velocity = u The final velocity = v The initial coefficient of friction = μkLet the…

Q: Two football players are pushing a 60 kg blocking sled across the field at a constant speed of 2.0…

A: Considering the motion in the y-direction, Substituting the values and solving gives

Q: A car moving with a velocity of 20m/s in the north direction, is acted upon by a pair of balanced…

A: According to Newton's First law a body will continue to move with same velocity or remains in rest…

Q: Mark swings a bucket filled with 2.5 kg of water over his head. The length of his arm is 0.52…

A:

Q: A 1,500-kg car starts from rest and takes 10 s to reach a speed of m/s. What is the force the engine…

A: Write the given values of this problem. m=1500 kgt=10 sAt rest, u=0

Q: A constant force of 200N is required to accelerate a 1600-kg trailer from rest to a speed of 25 m/s.…

A: Write the given values with the suitable variables. F=200 Nm=1600 kgu=0 m/sv=25 m/s Here, F is the…

Q: A boy on a skateboard is travelling north at 4.5 m/s when suddenly he is bumped in a direction 60°…

A: Given data Initial velocity , u=4.5 m/s Magnitude of acceleration is, a=0.5 m/s2 Angle ,θ=600 The…

Q: A 565 kg minecart is travelling at 78 km/hr. What is the average force required to stop the minecart…

A: Given data:  Mass (m) = 565 kg Initial velocity (v0) = 78 km/hr Time interval (Δt) = 23 s Final…

Q: What net force is required to make a 15kg box move at a constant speed of 2.0m/s .

A: Answer :- Given Mass of a box (m) = 15kg Speed ( V) = 2 m/s  Therefore  The box move at a constant…

Q: The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes 0.64…

A: Given: The height of the 100 kg object from the ground is  m. The initial velocity of the system is…

Q: A 1000 kg car traveling at a speed of 40 m/s skids to a halt on wet concrete where μk = 0.60. How…

A: Given data: Mass of the car m=1000 kg Initial speed u =40m/s Coefficient of kinetic frictionμk=0.60

Q: A 100 kg football player is traveling at 11 m/s when he is stopped in 0.1 seconds. What was the…

A:

Q: A body of mass 5 kg is dropped from a height of 100ft with zero velocity. Assuming no air…

A: Given: The mass of the object is 5 kg. The initial velocity of the object is 0 m/s. The height of…

Q: 3,150-kg truck accelerates from 4.2 m/s to 7.8 m/s in 14 s. Which describes the average force needed…

A: here,v2=7.8msv1=4.2 mst=14 smass,m=3150 kg

Q: Corey, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the…

A: Apply newton’s second law of motion along the motion of the lift,

Q: Somone is standing on a piece of cardboard holding a wire that is attached to a vehicle.  The…

A:

Q: A teacup fell was left on the wing of a fighter jet and did not fall until the jet was already very…

A: When object falls with a constant velocity the drag force on it is equal to the gravitational force…

Q: 4.A 3.5 kg mass has an initial velocity of 4.0 m/s. How much force is required to increase the…

A: Given:Mass,m=3.5 kgInitial velocity,u=4m/sFinal velocity,v=8 m/sTime,t=3…

Q: A 60 kg object traveling at a speed of 80 m/s is suddenly brought to rest in a time of 0.4 seconds.…

A:

Q: In a Force vs. Acceleration experiment a cart is pulled by a hanging mass of 100 gm. The cart is…

A: Suppose that mass of the cart is M1 Mass of the hanging mass is M2=100 gm = 0.1 kg Acceleration of…

Q: Shown below is a graph of a force applied to a small object as a function of time. If the object has…

A: We have Force v/s time graph for an object of mass m=5 kg. If we divide the y-axis of the graph by 5…

Q: A computer (weight W=100N) in a packing case is protected against impact by foam plastics (spring…

A: During free fall, the whole system experiences acceleration due to gravity. After impinging the…

Q: A 8.2 kg mass slides down a flat hill that makes an angle of 32 with the horizontal. If friction is…

A: Given data The mass is m = 8.2 kg The angle with the horizontal is θ = 32°

Q: A 55 kg ice skater is gliding along at 3.5 m/s. Five seconds later her speed has dropped to 2.9 m/s.…

A:

Q: The muzzle velocity of a typical 500 g spud is 25 m/s . The force given by the spud is K/(x+.09)…

A: Work done on spud = change in kinetic energy                ∫F→.dS→ =KFinal-KInitial…

Q: How large a force is required to accelerate a 1600 kg car from rest to a speed of 30 m/s in a…

A: Given data:  Mass (m) = 1600 kg Initial velocity (u) = 0 m/s Final velocity (v) = 30 m/s Distance…

Q: A Stevedore wants to push a 50 kg crate up a 40 degree ramp. He can push with a maximum 300 N. What…

A:

Q: A force accelerates a body of mass M. The same force applied to a second body produces three times…

A: From Newtons 2nd law we know F = ma where F = Force, m = mass, a = acceleration

Q: A car moving at 30 m/s crashes into a tree and stops in 0.25 s. Calculate the force the seat belt…

A: Before finding the force we need to find the acceleration. Once we have acceleration, using the mass…

Q: A body begins to slide over the surface of another, when pulled with a force of 10 N, if we pulled…

A:

Q: A bus driver is driving at 25 mph and has to make an emergency stop by slamming on the bus's brakes.…

A: The stopping distance is given by d=v22μg

Q: The problem was that the acceleration was too large and the safe slammed on the truck with large…

A: The displacement of the safe +furniture s=3 m The system is at rest initially its initial velocity…

Q: A bicyclist and his bicycle have a mass of 105 kg. What forces is necessary to bring him to rest…

A: Data given:Mass of the bicyclist, m = 105 kgInitial velocity, u =  25 m/sec.Final velocity, v = 0…

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: