a. At what minimum distance should the brakes be applied to avoid a collision with the other vehicle? b. If the distance between the vehicles is initially only 30.0 m, at what speed would the collision occur?

Q: A car traveling at 20 m s" collides with a massive wa!l and stops instantly. A passenger of mass 75…

A: Given, velocity of car = 20 m/s So, velocity of passenger = 20m/s  mass of passenger, m = 75kg Now,…

Q: The 1-kg ball is thrown at the suspended 26-kg block with a velocity of 9 m/s. If the time of impact…

A:

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

A: Given:Mass of the ball = 0.150 kgDistance moved by the ball before leaving from the hand = 1.45…

Q: A Force of x2 + 2 Newtons is pulling a 6 kg block at an angle of 24 degrees. The coefficient of…

A:

Q: A particle is located at r = (3.6i + 2.8j + 6.4k) m. A force F = (9.3j – 3.9k) N acts on it. %3D %3D

A:

Q: A locomotive engine of mass 1.80*10^5kg starts from rest on horizontal train tracks. The locomotive…

A: GivenMass of the locomotive mL = 1.80 x 105 kgInitial velocity of the locomotive uL = 0 m/sMass of…

Q: 9. A 100 kg-motorcycle at rest starts to move from point A with a constant acceleration. At that…

A: According to kinematics  S=ut+(1/2)at2 u=Initial speed t=time S= distance travelled a=constant…

Q: Eric is driving his scooter to soccer practice. his speed is 35 mph. splat! A mouth smashes against…

A: Newtons Third Law: As per Newton's third law for every action, there is an equal and opposite…

Q: Yesterday I went on a sled. I was sliding with a speed of 3.0 m/s across a pond covered with ice. My…

A:

Q: 2 A block with a mass, m = as shown to the right . a. Calculate the magnitude of the normal force on…

A:

Q: A man pushes on a brick wall. With what amount of force does the wall push back on the man? a…

A: 1) a man pushes on a brick wall Let the force exerted by the man on the brick wall = F

Q: Two blocks, M38.00 kg and m3D2.00 kg are touching and moving across a rough floor (k=0.12 at a speed…

A:

Q: A football punter accelerates a football from rest to a speed of 15 m/s during the time in which his…

A: Given:Initial speed of the ball, u = 0 m/sFinal speed of the ball, v = 15 m/sTime of contact, t =…

Q: What is the magnitude of the average force, in newtons on a 0.022 kg bullet to accelerate it to…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A 10.0-kg object is initially moving with a velocity of 20.0 m/s to the north and is acted on by a…

A: mass, m = 10 kg  initial velocity, u = 20 m/s  final  velocity, v = 12 m/s  distance, d = 30 m

Q: A model rocket is fired vertically from rest.        It has a constant acceleration of 19.8 m/s2…

A: A model rocket is fired vertically from rest. It has a constant acceleration of 19.8 m/s2 for the…

Q: A 1540-kg car is traveling with a speed of 12.4 m/s. What is the magnitude of the horizontal net…

A:

Q: A football punter accelerates a football from rest to a speed of 11 m/s during the time in which his…

A: Impulse imparted to the ball is equal to the change in momentum. Force exerted by the punter to…

Q: While playing basketball in PE class, a student lost her balance after making a lay-up and collided…

A:

Q: 2. You pull with a force of 255 N on a rope that is attached to a block of mass 30 kg, and the block…

A:

Q: A person stands on a scale inside an elevator at rest (see the figure below). The scale reads W =…

A: Given Data: Initial speed of elevator is zero. Reading of scale when elevator is at rest W=895 N…

Q: A boy standing on a frictionless ice rink is initially at rest. He throws a snowball in the…

A: As the boy throws the snowball, he exerts a force on the snowball in the forward direction along the…

Q: a. You are a newly graduated astronaut preparing for your first trip into space. Plans call for your…

A: For part a) Velocity= 500 m/s time 2.40 minutes weight= 735 N = 75 kg                   (as, 1 kg =…

Q: A teenager is pushing a cart.  There is no friction between the cart and the ground. Mass of the…

A: (1) From Newton’s 2nd law, Here, m and a represent the cart's mass and acceleration of the cart ,…

Q: Suppose a 1000 kg car hits a 10 kg shopping cart head-on. The shopping cart feels an average force…

A:

Q: A 95.5 kN car is traveling at 70.9 mph when the driver decides to exit the freeway by going up a…

A:

Q: A train is traveling up a 2.68" incline at a speed of 4.30 m/s when the last car breaks free and…

A:

Q: A 25.0 kg girl stands on a large raft that is 5.00 m and free to move across the river. The girls…

A:

Q: A football punter accelerates a football from rest to a speed of 15 m/s during the time in which his…

A: the average force is, Fav=mv-ut

Q: A football punter accelerates a football from rest to a speed of 11 m/s during the time in which his…

A: The expression to determine the acceleration of the ball is, a=∆v∆ta=11m/s0.14sa=78.57m/s

Q: A 120-kg car starts at rest and accelerates forward, reaching a velocity of 1600 cm/s in 5 s. What…

A:

Q: A 50.0 kg driver is riding at 35.0 m/s in her red sports car when she must suddenly slam on the…

A: Given, mass of driver =m=50 kg riding speed=U=35 m/s As we know that impulsive force =change in…

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

A: The expression for the net force is,

Q: A toy wagon is on a straight, horizontal track and has a fan attached to one end. The wagon is…

A: Given: m1=355 gs1=1.5 mt1=4.55 sm2=722 gs2=1.5 m To find: a). What is the net force exerted on the…

Q: A 4.0-g bullet leaves the muzzle of a rifle with a speed of 340 m/s. What force (assumed constant)…

A: Force acting on bullet is as follows; F=ma…

Q: A block with mass m1 = 7.5 kg rests on the surface of a horizontal table which has a coefficient of…

A: According to the company policy, first three parts would be answered. Please post the rest…

Q: After falling from rest from a height of 27 m, a 0.40-kg ball rebounds upward, reaching a height of…

A: Using the equation of motion, the velocity of the ball when it hits the ground can be obtained as…

Q: W.E-9:A bus moving on a level road with a velocity v can be stopped at a distance of x, by the…

A:

Q: A 48.2-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A: The average force exerted on an object is defined as ratio of the change in its momentum and the…

Q: Starting from rest, a   57.0 kg woman jumps down to the floor from a height of   0.740 m, and…

A: Given, mass of woman, M=57kg Height from she jumps to ground is, h=0.74m The total force exert by…

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: