A 900 kg car is traveling at 15m/s on a horizontal road. The brakes are applied and the car skids toa stop  in 4.0 s. The coefficient of kinetic friction between the tires and road is: a. 0.92 b. 0.76 c. 1.11 d. 0.38 e. 0.69

Q: 1. A hockey puck slides along the ice when it collides with a filled water bottle which was sitting…

A: Hockey puck (m)= 0.2kg  u1= 5i - 6j m/s  u2= -5cos36.87° i - 5 sin 36.87° j      = -4i -3j m/s  M=…

Q: 2200 kg car is driving down a highway at a constant velocity when a deer jumps out onto the road…

A:

Q: A baseball approaches home plate at a speed of 45.0 m/s, moving horizontally just before being hit…

A: Using Newton’s second law, the force exerted by the bat on the ball can be given by

Q: A 6.483E+3-kg truck moving east at 15.8 m/s collides with a 1.298E+3-kg car moving west at 28.6 m/s.…

A:

Q: A baseball approaches home plate at a speed of 50.0 m/s, moving horizontally just before being hit…

A:

Q: 4. In a tennis game, a 0.2 kg ball moving at 15 m/s is hit by a racket. After the impact the ball…

A: In this question we have to find the time of contact between ball and racket. Please give positive…

Q: A bat strikes a 0.145 kg baseball. Just before impact, the ball is traveling horizontally to the…

A: To determine: The horizontal and vertical component of the average force on the ball     Given: Mass…

Q: A 0.165-kg baseball pitched at 20 m/s is hit on a horizontal line drive straight back at the pitcher…

A: Given, mass of the baseball, m = 0.165 kg velocity of the ball (before contact), u = 20.0 m/s…

Q: A car moving at 9.5 m/s crashes into a tree and stops in 0.32 s. Part (a)  Calculate the magnitude…

A: (a) Using the kinematic equation of motion,

Q: A .22 rifle bullet, traveling at 300m/s strikes a large tree, which it penetrates to a depth of 10…

A: Velocity=300m/s Mass of bullet=2g

Q: A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the…

A:

Q: A model rocket (m = 1.0 kg) is launched from the ground, starting from rest, and accelerates…

A:

Q: A 0.020-kg bullet traveling at a speed of 300 m/s embeds in a 1.0-kg wooden block resting on a…

A:

Q: 3. A 2.6-gram bullet is fired horizontally from a short- barreled rifle. The 38-cm barrel of the…

A:

Q: Superman must stop a 130-km/hkm/h train in 110 mm to keep it from hitting a stalled car on the…

A: Given that:v=130 km/hr=36.11 m/sd=110 mm=3.6×105 kg

Q: Two automobiles traveling at right angles to each other collide and stick together. Car A has a mass…

A: The following problem involves the principle of conservation of momentum. Here, Conserving momentum…

Q: A 0.650 kg hammer is moving horizontally at 8.50 m/s when it strikes a nail and comes to rest after…

A: Weight of the hammer , m = 0.650 kg Horizontal velocity , v = 8.50 m/s  x = 1.00 cm= 0.01 m To find…

Q: An 80-Mg railroad engine A coasting at 6.5 km/h strikes a 20-Mg flatcar C carrying a 30-Mg load B…

A: (a) Consider the impact between the railroad engine A and the flat car C. The conservation of…

Q: A 450 gm ball moving in the +x-direction at 15 m/s is hit by a bat. It's final velocity is 21 m/s…

A:

Q: You are driving a 2500.0-kg car at a constant speed of 14.0 m/s along an icy, but straight and level…

A: We have givenmass of car (m)= 2500.0 kginitial speed u=0final speed v=14.0 m/sand distance travelled…

Q: A 0,160-kg hockey puck is moving on an icy, frictionless, horizontal surface, At t = 0, the puck is…

A: The net force is given by  F = m a  The first equation of motion is  v = u + at  where, m is the…

Q: golf club exerts an average horizontal force of 1000 N on a 0.045-kg golf ball that is initially at…

A: Given data  F = 1000 N, m = 0.045-kg, vo = 0, t = 1.8 ms.

Q: A 450 gm ball moving in the +x-direction at 15 m/s is hit by a bat. It's final velocity is 21 m/s in…

A: Given Mass of Ball m = 450 gm = 0.45kg Initial velocity of Ball u = 15m/s Final velocity of Ball v =…

Q: Kara Moore was applying make up in the parking lot Unaware that Lisa's car was stopped in her lane…

A: The impulse is defined as the change in linear momentum. The expression for the net impulse…

Q: A 5kg rifle is attached to a horizontal cable such that it will freely move neglecting friction. If…

A: According to conservation of momentum if no external force applid on a system it's momentum remains…

Q: 4) Consider an 80 kg man and 320 kg horse both running along a road with the same kınetic ener The…

A:

Q: A 0.950 kg hammer is moving horizontally at 7.50 m/s when it strikes a nail and comes to rest after…

A:

Q: A 6 kg fish swimming at 1 m/sec swallows a 2 kg fish that is swimming towards it at 3 m/sec. Find…

A: mass of first fish = 6 kg mass of second fish = 2 kg speed of first fish = 1 m/s velocity of second…

Q: Mr.M is riding on his bike while pulling his daughter in a trailer behind him. Their combined mass…

A: Combined mass (m) = 125 kg Initial speed (u) = 44 km/hr = 12.22 m/s distance (d) = 25 m  Final speed…

Q: 2. A 4 kg seagull flies at 15 m/s into the windshield of an airplane flying in the opposite…

A:

Q: A 70.9 kg boy and a 43.2 kg girl, both wearing skates face each other at rest on a skating rink. The…

A: Given data The mass of the boy is mb = 70.9 kg. The mass of the girl is mg = 43.2 kg. The velocity…

Q: The driver of a three-wheeler moving with a speed of 36 km/h sees a child standing in  the middle of…

A: Initial speed of the three-wheeler, u = 36 km/h  Final speed of the three-wheeler, v = 10 m/s  Time,…

Q: A 15.0 g bullet is moving to the right with speed 200 m/s when it hits a target and travels an…

A:

Q: A dump truck is being filled with sand. The sand falls straight downward from rest from a height of…

A: Given,

Q: A 0.550 kg hammer is moving horizontally at 8.50 m/s when it strikes a nail and comes to rest after…

A:

Q: A 10.0 g bullet travelling horizontally at 755 m/s strikes a stationary target and stops after…

A: Given,mass of bullet, m = 10 gvelocity of the bullet, v = 755 mspenetrating distance, d = 14.5 cm

Q: A 0.900 kg hammer is moving horizontally at 4.50 m/s when it strikes a nail and comes to rest after…

A: Given  Mass, M = 0.900 kg  Velocity, U = 4.50 m/s  Come to rest after driving  1.0 cm into board

Q: Car A of mass 1200 kg moving at 30 m s collides with a car B of mass 1500 kg moving at 20 m s' in…

A:

Q: Jonathan and Jane are sitting in a sleigh that is at rest on frictionless ice. Jonathan’s weight is…

A:

Q: A baseball player hits a bunt during which the bat is in contact with the ball for 0.0005 s. If the…

A: Given data:  Time (t) = 0.0005 s Force (F) = 3,000 N Mass (m) = 0.15 kg Required: The change in the…

Q: A 0.650 kg hammer is moving horizontally at 7.50 m/s when it strikes a nail and comes to rest after…

A:

Q: Mithali Raj, using a non-standard carbon-reinforced bat, hits a cricket ball with enough force to…

A: Maximum time the ball would be in the air to achieve this new distance goal is T = 6.63 Seconds

Q: A baseball approaches home plate at a speed of 50.0 m/s, moving horizontally just before being hit…

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: