A 925-kg pickup decelerates to rest from a speed of 75 km/h in a distance of 140 m. Consider that the pickup is initially moving in the positive direction. Suppose instead of braking that the pickup hits a concrete abutment at frill speed and is brought to a stop in 2.00 m. Calculate the force, in newtons, exerted on the pickup in this case.

Q: A 54.3 kg pole vaulter running at 10.7 m/s vaults over the bar. The acceleration of gravity is 9.81…

A:

Q: A steady force impacts a 0.85 kg ball resting on the ground. The impact lasts 0.36 seconds,…

A: Given Data, Mass of the ball (m)=0.85 kg Time duration (∆t=0.36 s Velocity (v)=3.1 m/s

Q: For a swimmer who has just jumped off a diving board, assume air resistance is negligible. The…

A: Given: Mass of swimmer = 80 Kg Height of the jump = 10 m Time that is taken to enter water = 3…

Q: After falling from rest from a height of 30.0 m, a 0.500-kgball rebounds upward, reaching a height…

A: Let the height through which the ball falls be denoted by h1 and the height through which it again…

Q: A racing car and a moving van are both traveling at 40 km/h. Which of the two vehicles will require…

A: Given, a racing car and a moving van are both travelling at an initial speed, v1=40 km/h. and,…

Q: The front 1.20 m of a 1 400-kg car is designed as a “crumplezone” that collapses to absorb the shock…

A: Part A:

Q: A boy coasts down a hill on a sled, reaching a level surface atthe bottom with a speed of 7.00 m/s.…

A: Let the mass of the boy and the sled together be denoted by m.Let the weight of the boy and sled…

Q: A 821-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

A: Given: The mass of the car is 821 kg. The initial speed of the car is 0 m/s. The final speed of the…

Q: Superman must stop a 120-km/h train in 200 m to keep it from hitting a stalled car on the tracks. If…

A: Given: Train speed = 120 km/h or 33.33 m/s Distance in which superman has to stop the train = 200 m…

Q: A car that weighs 1.30 * 104 N is initially moving at 40 km/h when the brakes are applied and the…

A: Since there are multiple sub parts posted, we will answer the first three sub parts. a) The equation…

Q: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air…

A: Given,

Q: traveling at a speed of 50 m/s. But the driver noticed that the bridge 300-m ahead is missing. At…

A: Given data: The mass of the train is m=20×103 kgm=20×103 kg. The speed of the train is v=50 m/s =50…

Q: A 51.5-kg swimmer with an initial speed of 1.25 m>s decides tocoast until she comes to rest. If…

A:

Q: If a 0.50-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force…

A:

Q: Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 92.9 kg, down a…

A:

Q: Superman must stop a  120 km/h train  in 150 m to keep it from hitting a stalled car on the tracks.…

A:

Q: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air…

A: Given,

Q: What average force is required to stop a 1600 kg car in 9.0 s if the car is traveling at 80 km/h?…

A: mass of the car (m) = 1600 kg time (t) = 9 sec speed (v) = 80 km/hr

Q: Check Your Understanding A 550-kg sports car collides with a 2200-kg truck, and during the…

A:

Q: A 4.80-kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength…

A:

Q: What is the mass of a bowling ball that exerts a downward force of 160 N on your skull after gently…

A:

Q: Delfa falls from the building and is caught by the superhero. Assuming that Delfa with a mass of 55…

A: Given that, Mass of delfa = 55 kg Terminal velocity = 70 m/s Time t = 0.1 s

Q: A 450-N is in contact with a level plane of fk = 0.10. If the block is acted upon by a horizontal…

A:

Q: When landing from a jump, Andy applied an average vertical force of -2500 N to the ground in order…

A: Given: Average vertical force, F=-2500 N Weight, W=-760 N Mass, m=77.5 kg Formula: Newton's Second…

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 body weighing2 kg was acted upon by a horizontal force of 3 N. What speed will the body acquire in…

A: The physical quantities can be of two types- scalar and vector. The scalar quantities are the…

Q: A 16-year-old employee working for Southern Virginia College's (SVC) bookstore during the summer…

A:

Q: A 970.-kg car starts from rest on a horizontal roadway andaccelerates eastward for 5.00 s when it…

A: Force is,

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: What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at…

A: Given:- m= 45 kg a= 7.5 m/s2

Q: A 64.5 kg sprinter accelerates from 2.2 m/s to 8.25 m/s over a distance of 27 m A) Calculate the…

A: v2=u2+2ada=v2-u22d=8.25 m/s2-2.2 m/s2227 m=1.17 m/s2

Q: In a head-on collision, a car stops in 0.14 ss from a speed of 11 m/sm/s . The driver has a mass of…

A:

Q: A pole vaulter of mass 60.0 kg vaults to a height of 6.50 m before dropping to thick padding placed…

A:

Q: A gun is shot into a 0.50 KN block which is hanging from a rope of 1.8m long. The weight of the…

A:

Q: A 958-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

A:

Q: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air…

A: According to the given condition, the initial speed (u) is zero and the final speed (v) is 22 m/s.…

Q: What force is needed to accelerate a sled ( mass=55kg) at 1.4 m/s2 on horizontal frictionless ice?

A: The definition of force is F = ma

Q: Early test flights for the space shuttle used a "glider" (mass of 900 kg including pilot). After a…

A: Given:Mass of the glider = 900 kgInitial velocity = 460 km/hFinal velocity = 200 km/hVertical height…

Q: •A baseball of mass m and initial speed v strikes a catcher’s mitt.If the mitt moves a distance ∆x…

A: The given values with suitable variables are listed below. Here, vi denotes the initial speed and s…

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…

Q: A wooden box with a mass of 50kg reaches v = 4m/s after translating to the right by five meters.…

A:

Q: A box, initially at rest, has 20.9 N of force exerted on it for 5.39 s. If the box has a mass of…

A:

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: