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 90 kgkg , and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fraction of a second?

Q: A 841.2 kg car initially moving at 17.39 m/s starts to slow down and comes to a complete stop in…

A: Just replace the values and its done

Q: A girl with a mass of 52kg rides a skateboard with a mass 1.5kg. She uses her foot to apply a force…

A: Given: The mass of the girl is 52 kg. The mass of the skateboard is 1.5 kg. The acceleration of the…

Q: Yesterday, I was roller skating. I was moving with a speed of 5.0 m/s on a road. My mass in total is…

A: Magnitude of the Force

Q: Two people are pushing a truck across a parking lot. The truck has a mass of about 2 × 10 kg. First,…

A:

Q: An Object with a mass of 6.2 kg accelerates 12.3 m/s2 when an unknown force is applied to it. What…

A: Given value--- mass = 6.2 kg. acceleration = 12.3 m/s2  . We have to find--- force ?

Q: A vehicle with a mass of 2.40 * 103 kg is driving at a speed of 25.0 m/s. When the driver uses the…

A: Mass of the vehicle m = 2.40 × 103 kg Initial velocity of the vehicle u = 25.0 m/s Final velocity of…

Q: An electron is a subatomic particle (m = 9.11 x 10*31 kg) that is subject to electric forces. An…

A:

Q: on aircraft carriers, catapults are used to accelerate aircraft to flight speeds in a short…

A: The acceleration of the jet is, a=v-ut=70 m/s-0 m/s2.5 s=28 m/s2

Q: While walking along Makati Avenue, you saw a moving car with initial speed of 28 m/s . The car is…

A:

Q: A 19 gram bullet is accelerated from rest to a speed of 388 m/s as it travels 37 cm in a gun barrel.…

A:

Q: A 2550 kg car traveling to the north is slowed down from an initial velocity of 19.5 m/s by a 5750 N…

A: Using newtons second law  Fnet=ma  And using first equation of motion  V=u+at

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030 s. During this time, the…

A:

Q: An 940 kg dragster, starting from rest, attains a speed of 29.4 m/s in 0.4 seconds. What is the…

A: Concept

Q: In a performance test, each of two cars takes 8.7 s to accelerate from rest to 27 m/s. Car A has a…

A:

Q: When a 0.058 kg baseball is hit by a bat, it accelerates to a speed of 45 m/s coming from rest. The…

A:

Q: A vehicle with a mass of 2.40 * 103 kg is driving at a speed of 25.0 m/s. When the driver uses the…

A:

Q: A 2500 kilogram truck is moving initially with a velocity of 10.00 meters per second. To change its…

A:

Q: A net force of 81.6 N propels a 4.00-kg model rocket. After being launched from rest, how fast is…

A: Dear student We can apply the equation of motion when acceleration is constant. Which is as : V = u…

Q: If a 140 g baseball strikes your head at 33 m/s and stops in 0.0014 s , what is the magnitude of the…

A: Write the given values with the suitable variables. m=140 gu=33 m/st=0.0014 sv=0 m/s Here, m, u, t,…

Q: A compact car has a maximum acceleration of 4.0 m/s2 when it carries only the driver and has a total…

A:

Q: A 987.6 kg car initially moving at 10.74 m/s starts to slow down and comes to a complete stop in…

A:

Q: A boy slides down a hill on a sled (total mass of 31 kg) and coasts onto a flat plain with a speed…

A: Given data The total mass of the boy and sled is m = 31 kg. The speed of the boy and sled is u = 6.5…

Q: In a Subaru TV commercial, a dog is driving a car of total MASS 1,812 kg.  Suddenly a person runs…

A:

Q: A 1320 kg car skids to a halt on a wet road where μkinetic = 0.32. How fast (in m/s) was the car…

A: Solution: Given: A car is braked to stop it. You are required to find the initial speed of car. m =…

Q: Big Boris (90kg) skates backward, 1.0 meter ahead of small skater Sofia (45 kg) , holding her hand…

A: Mass of boris = 90 kg mass of sofia = 45 kg Initial speed of both of them = +3 m/s time when the…

Q: A car of mass 1.2  103 kg is traveling east at a speed of 24 m/s along a horizontal roadway. When…

A: Given: Mass of car is M=1.2×103kg The initial speed of the car is Vinitial=24m/s brakes are applied…

Q: A child of mass 22.0 kg runs and slides across the ice in a skating rink.  Initially she is moving…

A:

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

A: 1. First, determine the cart’s constant acceleration (a) during the given time due to the force (F)…

Q: A 100 kg stunt woman falls from a three-story building that is 10 m high. If she falls into a net,…

A:

Q: A biker is traveling on level ground at 52.0 m/s with a combined mass of 325.0 kg.  She spots a…

A:

Q: An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An…

A:

Q: A soccer player starts from rest and accelerates forward, reaching a velocity of 9.00 m/s in 3.00 s.…

A: The equation of motion is, v = u + at9m/s =0+a3.0sa=3m/s2

Q: A driver in a 1500-kg car driving at 10.0 m/s gently presses the brakes momentarily. The brakes…

A:

Q: A 1000-kg automobile enters a freeway on-ramp at 20 m/s and accelerates uniformly up to 40 m/s in a…

A: First of all we have to calculate the acceleration of the automobile. Acceleration of an object is…

Q: time t = 0 a 2250 kg rocket in outer space fires an engine that exerts an increasing rce on it in…

A: Given: Equation of force Fx=At2 At time t=1.45 s force is 781.25 N Mass of rocket is m=2250 kg Note:…

Q: A small rocket of weight 1.7 lbs is launched vertically with thrust 3 lbs from a stand on the ground…

A:

Q: A bullet of mass 0.02 kg is fired from a rifle. The bullet takes 0.02s to move through the barrel…

A: Initial velocity of the bullet = 0 ms-1 Final velocity of the bullet = 200 ms-1 Time to travel =…

Q: A compact car has a maximum acceleration of 5.0 m/s2m/s2 when it carries only the driver and has a…

A:

Q: by conscientious ex nass m' on the planet.

A: Given: Acceleration is 12.3 m/s2 To find the mass of traveler on planet.

Q: omobile of mass 2500 kg moving at 50.0 m/s is braked suddenly with a constant braking force of 8500…

A:

Q: Choose the correct SI units of constant A. O s²/N ON/s O N/s² O S/N

A:

Q: net force of 20 N is acting on a falling object. The object experiences air resistance of 6.0 N. If…

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: