A man of mass m = 65 kg jumps off a table at height h = 2 m. While hitting the floor he bends his knees such that the time of contact is 0.1 s. 2. Determine the force exerted by the floor on you. a. 4271.72 N c. 4371.72 N b. 4171.72 N d. 4071.72 N 3. If the student does not bend his knees the time of contact is 10ms. Determine the new force exerted by the floor now. c. 42717.2 KN c. 43717.2 KN d. 41717.2 KN d. 40717.2 KN

Q: 8. (a) A car with a mass of 850 kg is moving to the right with a constant speed of 1.44 m/s. What is…

A: (a)Newton's second law states that acceleration of an object is directly proportional  to the net…

Q: A 0.540-kg bucket rests on a scale. Into this bucket you poursand at the constant rate of 56.0…

A: a) The expression for the impact of the pouring sand on the scale will be,

Q: a) What is thex component of the force Fo L. 52° m,=8.0 kg m,=2.0 kg Vo-=4.0 m/s O 67.1 N O -41.9 N…

A:

Q: 10. A 430 N force accelerates a cart from 10 m/s to 18 m/s in 5 s. What is the mass of the cart? a.…

A: Given: The force (F) on the cart is 430 N. The initial speed (u) of the cart is 10 m/s. The final…

Q: 12. An 80.0 kg stuntman jumps out of a window that is 45 m above the ground. a. How fast is he…

A:

Q: 5. A 55 kg skater is moving at 15msin the (−ˆy) direction on a frictionless rink throws a 3 kg ball…

A:

Q: The human head can be considered as a3.3-kg cranium protecting a 1.5-kg brain, with a small amount…

A: Given: Weight of the human head = 3.3 Kg Weight of the brain = 1.5 Kg Force applied = 2800 N

Q: 1. Carol, who is 60 kg, is driving her çar at a speed of 25 m/s. She sees a dog crossing the road…

A:

Q: When a golf ball is dropped to the pavement, it bounces back up. (a) Is a force needed to make it…

A: A golf ball

Q: 2)A 1300-kg sports car initially has a velocity of 35.2 m/s due south. The driver slams the brakes…

A: The mass of a sports car is, The distance traveled by a sports car is, The initial velocity of a…

Q: H.W: Two blocks connected by a cord passing over a small frictionless pulley rest on frictionless…

A: According to Newton's second law Net force =mass×acceleration FBD of the block and the system:

Q: 3) A 7-kg rock and a 20-kg rock are launched horizontally from a platform with initial velocity of v…

A: The masses of the rock: 7 kg and 20 kg The initial velocity with which the two rocks are launched…

Q: Superman must stop a train traveling at v = 120 km/h in a distance d= 150 m to keep ot from hitting…

A:

Q: 1. A small engine causes a 0.30 kg model airplane to accelerate at a rate of 11 m/s2. What is the…

A: Given data The mass of the engine is given as m = 0.30 kg. The rate of acceleration is given as a =…

Q: 42.0 kg mass is moving with velocity +68.0 m/s when it experiences an acceleration of -7.00 m/s².…

A:

Q: how would you sovle this>?

A:

Q: A 2 000-kg car is slowed down uniformly from 20.0 m/s to 5.00 m/s in 4.00 s. (a) What average force…

A: The mass of a car is, m=2000 kg The initial velocity of a car is, u=20 m/s The final velocity of a…

Q: A 1000 Kg car goes from 10 Km/h east to 250 Km/h west in 10 seconds, the force experienced by the…

A: Given : m = 1000 kg vi = 10 km/h = 10(1000/3600) = 2.778 m/s vf = -250 km/h = -250(1000/3600) =…

Q: 6. A 60 kg astronaut, floating freely in space, pushes forward with a force of 30 N on a freely…

A:

Q: A 0.340 kg particle moves in an xy plane ace (t) = – 15.00 + 2.00t – 4.00 and y(t) = 25.00 + 7.00t –…

A: GivenMass of particlle (m)=0.340 kgx(t) = —15.00 + 2.00t — 4.00t3 and y(t) = 25.00 + 7.0t — 9.00t2

Q: 2. Florence, who weighs 440 N, stands on a bathroom scale in an elevator. What will she see the…

A: Given data,

Q: 1. A large semi truck has a mass of 35,000 kg. It collides head on with a car that has a mass of…

A:

Q: A 0.160 kg hockey puck is moving on an icy, frictionless, horizontal surface. At t = 0, the puck is…

A: Mass of the puck = m = 0.160 kg Initial velocity = Vi = 3.00 m/s Force applied on the puck directed…

Q: H.W: Two blocks connected by a cord passing over a small frictionless pulley rest on frictionless…

A: The answer is provided below.

Q: A 70.0-kg man and a 55.0-kg woman holding a 2.50-kg purse on ice skates stand facing each other. If…

A: By Newton's second law of motion, Force = rate of change of momentum with time F = dp/dt

Q: Problem 1 mass 100 g that is initially at rest. 1) What is the net force acting on a particle? (a)…

A: Since force is a vector quantity resultant can be determined by vector addition. According to…

Q: A(n) 927 kg drag race car accelerates fromrest to 115 km/h in 1.11 s. What average force is exerted…

A: Given datamass of car m=927 kgInitial velocity u=0Final velocity V=115 km/h…

Q: 8. Carol, who weighs 60 kg, is driving her car at a speed of 25 m/s. She sees a dog crossing the…

A:

Q: m A 500 [g] particle has velocity v = -5.0 at t = 0 [s]. Force F = (4 – t²) [N] is exerted on the…

A: The mass of the particle is m = 500 g = 0.50 kg. The velocity of the particle at time t1 = 0 is v1 =…

Q: Keith Lee, who is billed at 154 kg, ejects Adam Cole, billed at 95 kg, from frame. Assuming Cole…

A: Given data The mass of Keith lee is given as mk = 154 kg. The mass of adam cole is given as ma = 95…

Q: A 92.5 kg stunt man stands on a piston that will launch him out of a vertical tube. The piston…

A:

Q: (5) The car is accelerating to the right at 3.0 m/s², m1 = 10 kg and mɔ = 20 kg. a) What is the net…

A:

Q: A 78.0 kg person falls straight down from a 1.60 m height (measured from his feet) and lands with…

A: Given: Height of the person, h=1.60 m mass of the person, m=75 Kg Time taken in the part (a) t1=0.75…

Q: A 1370 kg jeep traveling at 19 m/s can be stopped in 24.0 s by gently applying the brakes. a) What…

A:

Q: A 0.51 kg football is thrown with a velocityof 18 m/s to the right. A stationary receivercatches the…

A:

Q: A frog with some sort of little monster on his back is swimming in a bathtub of split tomato soup.…

A: Given, The mass of the frog m1=0.0280 kg The mass of the monster: m2 = 0.0300 kg The force applied…

Q: A 20,000 kg rocket has a rocket motor that generates 3.0 x 105 N of thrust.a. What is the rocket’s…

A: a) The rocket experiences two forces on it, one is its weight (in the downward vertical direction),…

Q: They are at rest, d= 39.2 m apart, .(i w) gets a rope around a N2 = 4497N polar bear (-) An N1 =…

A: Given data: Distance of separation, x2=39.2 m Weight of polar bear, N2=4497 N Weight of hunter,…

Q: n object accelerates 5.0 m/s2 when à förce of e mass of the object? -4KG 100KG .25KG

A: Given values:- Acceleration of the object,(a)=5 m/sec2 ----(1) Force applied to object,(F)=20 N…

Q: n object with a mass of 1500 g (grams) accelerates 10.0 m/s? when an unknown force is applied to it.…

A:

Q: A small engine causes a 0.20-kg model airplane to accelerate at a rate of 12 m/s2 . What is the net…

A: Mass M = 0.20 kg Acceleration a = 12 m/s2

Q: (a) What is the ratio of the kinetic energy after the collision to the kinetic energy before the…

A:

Q: Two blocks are attached by massless strings and accelerated to the right on a frictionless…

A:

Q: W. prav Wa AK 10. The left end of a spring is attached to a wall. When Bob pulls on the right end…

A: Spring force F =-kx  k is spring constant,x is displacement from mean postion. Initially spring is…

Q: 4.39 4.39 Tuo crntes, one with mass 4.00 kg and the other with mass 6.00 kg. sit on the frictionless…

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: