A car accelerates from a stop to 100km/h in 4 seconds.  - what is its acceleration? - what if it went from 100km/h to a stop in 5 seconds, what would be its acceleration? - suppose the car has a mass of 1200kg. How strong is t

Q: A 10-lb rock and a 5-lb rock are dropped simultaneously from the same height.  Some say that because…

A: The time taken by an object when it is released from rest to reach the ground can be given as, t=2hg…

Q: A force accelerates a cart from 0 to 5 m/s while it travels 15 meters. Would the same force cause it…

A: Given data: The starting speed is u=3 m/s. Final speed is v=5 m/s. The distance traveled is s=15 m.

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: What is the deceleration of a race car if it comes to rest in 3.6 seconds from a speed of 99 km/hr?…

A:

Q: An unfortunate bug hits the windshield of a speeding truck. At the moment of collision, what can you…

A: There is almost no change in the velocity of car therefore at the moment of collision there is…

Q: A 1500-kg car traveling 65 km/hr can come to a stop within a distance of 25 meters when the brakes…

A: We need to calculate the friction force acting on the 1500-kg car.

Q: A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at…

A:

Q: What average net force is required to bring 1000[kg] car to rest from a speed of 4.0[m/s] within a…

A:

Q: 8. A race car with a mass of 710 kg starts from rest and travels 40 m in 3.0 seconds. What net force…

A: Q1).  Given Data : The mass of the race car is given as m = 710Kg. The distance travelled by the…

Q: On a table, a book is resting. It weighs 8 kilograms. With a force of 15N, you push directly down,…

A:

Q: A 25-g snail goes from rest to a speed of 3.0m/s in 5.0 sec. How much horizontal force

A: Given -: mass of snail, m = 25 g initial at rest then initial velocity, u= 0 m/s Final velocity, v =…

Q: You are going sledding with your friends, sliding down a snowy hill. Friction can’t be ignored.…

A: Figure for the given explanation.

Q: In Newton's Second Law F = ma; if we will double the mass of the object while keeping the force…

A: Given data as per question maas is doubled and force is constant m1   =  0.350kg m2  =  0.350kg2 u1…

Q: calculate the minimum braking distance for a car of mass 1 ton travelling at 11 m/s. The car can…

A:

Q: How much force is required to accelerate a 2000 kg bus at 2 m/s^2 if the friction is negigible

A: Given data:  Mass (m) = 2000 kg Acceleration (a) = 2 m/s2  Frictional force is negligible  Required:…

Q: A 1 kg toy car is accelerated from rest by a net force shown in the graph. The approximate speed in…

A: We can see that F is a linear function of x.Slope of the linear function…

Q: Someone pushed a car that was stationary Its mass is 400 kg on flat ground and with a force of 200…

A:

Q: A person pushed a car that was stationary, with a mass of 400 kg, on flat ground, with a force of…

A: Given: Mass of car, m=400 kg Force applied, F=200 N   To find the acceleration.

Q: At the end of an amusement park ride, it is desirable to bring a gondola to a stop without having…

A:

Q: the crumple zone exerts +200,000 N of force on the wall, how much force will the wall exert on the…

A: The crumple zone exerts +200,000 N of force on the wall. We need to find how much force will the…

Q: Why is it that when you are climbing up a wall, you pull down on a hold to move upward?

A: yes, From newton 3rd law of motion which state that for every action there is equal and opposite…

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: How much force is needed to accelerate a 66kg skier at 2m

A:

Q: A force of 600 Newtons acts on a ball for 1.5 seconds after being hit by a volleyball player.…

A: F = 600 N  ∆t = 1.5 s  Mass of the Ball is M = 275 g = 0.275 kg

Q: by

A: The kinematics equation can be used to find the position of an object, time taken, or the velocity…

Q: 4. A 2-kg box sits on a 3-kg box which also sits on a 5-kg box. The 5-kg box rests on a table top.…

A: Given: Mass of the upper box, mu = 2 kg. Mass of the middle box, mm = 3 kg. Mass of the lower box,…

Q: A 2400 kg elevator accelerates upward at 1.40 m/s² for 15.0 m , starting from rest.

A:

Q: You stand in front of a wall and press against it with a force of 20N. the wall presses back on you…

A: 20N Thewall presses back on you With force 20N

Q: Starting from rest, a 940 kg racing car covers 400 m in 4.95s. Find the average force on the car.

A: Given data:  Mass (m) = 940 kg Initial velocity(v0) = 0 m/s Displacement (x) = 400 m Time (t) = 4.95…

Q: A car is moving at 50.0km/hr. it’s mass is 1500kg. if it is to reduce its speed by 50% over 100.0m…

A: Given data The initial speed is u=50 km/h=13.89 m/s The speed is reduced by n=0.50 The distance…

Q: A 2000-kg car traveling at 15 m/s takes 53 m to stop under full braking. The same car under m to…

A: Given data:  Mass (m) = 2000 kg Initial velocity (v0) = 15 m/s Displacement (Δx) = 53 m Final…

Q: Two blocks are side by side. The larger is la kg lon the left), while the smaller is 5 Ka (on the…

A: Draw the schematic diagram of the block as shown in the figure:

Q: Q1-A-A projectile is shot upward from the earth with a speed of 30m/s .How high is it when its speed…

A:

Q: A car mass 750 kg is accelerated from rest by a constant force of 500 N for a distance of 200 m.…

A: Given: Mass of car: m=750 [kg] Force of acceleration: F=500 [N] Distance covered: d=200 [m] At…

Q: 2.6. A car of mass 750 kg is accelerated from rest by a constant force of 500 N for a distance of…

A: The third equation of motion is  v2 = u2 + 2 a s  where, u is the initial velocity, v is the final…

Q: A ballon is being pushed upwards by the force of the hot air inside it. If the ballon has a mass of…

A:

Q: A car moving at 14 m/s crashes into a tree and stops in 0.91 s. The mass of the passenger inside is…

A: Given data:  Initial velocity of car (Vi) = 14 m/s Final velocity of car (Vf) = 0 m/s Mass of…

Q: During a hard stop, a car and its passengers slows from 46 m/s to zero in 0.5- s. What magnitude…

A:

Q: A 2000-kg car traveling at 21 m/s takes 44 m to stop under full braking.  The same car under similar…

A:

Q: A 70 kg stunt- woman falls off a bridge and travels 29.0 before colliding with a pile of mattresses.…

A: Given, Mass of stunt woman, m=70 kg Distance travel before colliding, s1=29 m Distance of…

Q: A 2000-kg car traveling at 21 m/s takes 51 m to stop under full braking. The same car under similar…

A: Given data:  Initial velocity (v0) = 21 m/s Final velocity (v) = 0 m/s Displacement (d) = 51 m New…

Q: 6. 2-kg box is sliding to the right across a table. The force of friction upon the box is 5 N. If…

A: Mass of box = 2 kg frictional force = 5 N initial speed = 70 cm/s = 0.7 m/s

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!