A 57 kg skier is going down a mountain side, during one particularly steep region their velocity can be described as a function of time as v(t)=(3.8+3.4t+0.8t2) m/s. What is the net force on the skier at a time of 3.2 seconds?

Q: A 4 kg particle moves along an x axis according to x(t) = −1 + 4t − 5t3 , with x in meters and t in…

A:

Q: A 2 kg particle moves along an x axis, being propelled by a variable force directed along that axis.…

A: The mass of the particle, m = 2 kg The position vector is x=2 m+ 3 m/st+ct2-4 m/s3t3

Q: A student weighs 200 N. If he is in an elevator that is accelerating upward at 2.00 m/s/s, what will…

A: Given that:-Weight of student=mg=200NUpward acceleration, a=2.00m/s2We know thatApparent weight of a…

Q: A 500-lb object is released from rest 500 ft above the ground and allowed to fall under the…

A:

Q: 5. If you reduce the applied force on an object by 4, what do you think will happen to the…

A: Write the expression for Newton’s law.

Q: A 6000 - kg spaceship ( initially at rest ) leaves the Earth's surface traveling upward and reaches…

A: Given: The mass of the object is 6000 kg. The initial speed of the rocket is 0 m/s. The distance…

Q: A 2-kg body of mass is moving on a horizontal frictionless surface with a velocity of 4 m/s. What is…

A: Mass of body (m) = 2 kg velocity (v) = 4 m/s time (t) = 5 seconds

Q: You give a 2.10 kg box a hard shove at the bottom of a ramp, and it leaves your hand with a speed of…

A: Given:- The mass of the box is m = 2.10 kg  The initial speed of the box is u = 8.50 m/s  The angle…

Q: A driver drives his 1225.0-kg vehicle heading north and then turns east at an intersection. It…

A:

Q: A 55.0 kg object traveling at 8.50 m/s is brought to rest in a time of 1.10 s. What is the average…

A:

Q: A person traveling in a 2,000 kg car at a constant speed of 40.0 m/s applies the brakes, causing a…

A: Given:Mass of the car = 2,000 kgInitial speed of the car = 40 m/sFinal speed of the car = 0Force…

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.4 m/s2. If the river is…

A:

Q: A horizontal force of 90.7 N is applied to a 56.5 kg crate on a rough, level surface. If the crate…

A:

Q: The figure below is for a 6 kg box on a horizontal floor. Initially, you are pushing horizontally on…

A:

Q: Q: A normal walking speed is around 2.0 m/s . How much time t does it take the box to reach this…

A:

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.51 m/s2. If the river is…

A: Initial velocity = 0 msAcceleration (a) = 1.51 ms2Force (F) = 0.79 N

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: After a day of testing race cars, you decide to take your own 1460.7 kg car onto the test track.…

A:

Q: Two masses are being pulled up a 30.0 degree incline by a force F parallel to the incline. The…

A: Acceleration of 150-kg mass also = 1.00 m/s2Frictional force on the 150 kg is = 150 × 9.81 × cos 30…

Q: A 645 kg car is being pushed along a flat parking lot at a constant speed of 1.78 m/s. The…

A: The mass of the car, m=645 kg The velocity of the car, v=1.78 m/s The coefficient of friction…

Q: A horizontal force of 90.2 N is applied to a 28.5 kg crate on a rough, level surface. If the crate…

A:

Q: An astronaut named Johnny is driving to their rocket when they suddenly need to break. The car…

A:

Q: A 68.5 kg person is standing inside an elevator. The elevator is going from the 1st floor to the 9th…

A:

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: A horizontal force of 88.2 N is applied to a 30.5 kg crate on a rough, level surface. If the crate…

A: Here, the net force, Fnet = 88.2NMass of the crate, m = 30.5kgAcceleration of the crate, a = 1.08…

Q: A horizontal force of 90.7 N is applied to a 60.5 kg crate on a rough, level surface. If the crate…

A: Given Data : The mass of the crate is given as m = 60.5 Kg. The force applied to the crate is given…

Q: A 2 kg golf ball moves along an x axis according to x(t) = 1013 – 2.80f2 + 7.4t + 15, with x in…

A:

Q: A 10 kg object starts from rest and achieves a speed of 20 m/s in 10 s. How much force (in N) acted…

A: Mass of the object m=10 kg The initial speed of the object u =0 m/s The final speed of the object v=…

Q: A flea jumps by exerting a force of 1.32 × 10-5 N straight down on the ground. A breeze blowing on…

A: Given Force exerted by the flea on the ground is Fflea=1.32×10-5 N Force due to the breeze parallel…

Q: Laila, who is a part of a critical patient's medical team was responsible for pushing a cart…

A:

Q: A horizontal force of magnitude F = 56.2 N pushes on a block of mass m = 5.87 kg. The block is on a…

A: The objective of the question is to find the acceleration of the block on the incline in terms of…

Q: he is pulled upward at a constant vel Question 14. To hoist himself into a tree, a 72.0-kg man ties…

A: Tension, T = 367 NMass, m = 72 kgAcceleration, a = ?

Q: A person whose weight is  516 N is being pulled up vertically by a rope from the bottom of a cave…

A:

Q: Consider a wooden ramp angled 30.1 degrees above horizontal. If a 10.2-kg wooden block is given a…

A: Draw the free-body diagram of the block.

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: A 26.84 kg dog jumps on a 86.86 kg bed. As the dog walks around on the bed, what is the average…

A: mass of dog = m1 =26.84 kg mass of bed = m2 = 86.86 kg

Q: The acceleration of a particle moving along the 7. x-axis is given by the function a, = -7 ť + 4 t*…

A:

Q: A 1250 kg boat is traveling at 90 km/h when its engine is shut off. The magnitude of the frictional…

A: Using Newton’s second law of motion,

Q: You are given two masses, m₁ and m2, strapped on a pulley with a rope. m₁-13 kg and m2-17 kg. What…

A: Given value--- m1 = 13 kg. m2 = 17 kg . so we can see m2 > m1. We have to find--- What is the…

Q: A model rocket is launched up with a thrust of 44.2 N. At one point in its upward flight, the air…

A:

Q: A horizontal force of 88.7 N is applied to a 28.5 kg crate on a rough, level surface. If the crate…

A: Answer =  57.92 N  Explanation:

Q: An astronaut named Johnny is driving to their rocket when they suddenly need to break. The car…

A:

Q: Aircraft carriers use catapults to launch jets from their deck. One such catapult accelerates a…

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: