After falling from rest from a height of 27 m, a 0.40-kg ball rebounds upward, reaching a height of 17 m. If the contact between ball and ground lasted 2.5 ms, what average force was exerted on the ball? (Enter the magnitude.) N

Q: A Calculate the magnitude of the force, in newtons, exerted by a 0.125-mg chip of paint that strikes…

A: To determine,The magnitude of Force(F) exerted by chip of paint.given,mass of chip(m)=0.125…

Q: The front 1.20 m of a 1550 kg car is designed as a "crumple zone" that collapses to absorb the shock…

A:

Q: A61 kg student runs at 5.5 m/s, grabs a hanging rope, and swings out over a lake. He releases the…

A: mass = 61 kg v = 5.5 m/s a) Using , change in kinetic energy = change in potential energy…

Q: Part C Rank the automobiles based on the magnitude of the force needed to stop them, from largest to…

A: Rank the automobile based on the magnitude of the force needed to stop them.

Q: A 0.500 kg hammer is moving horizontally at 7.50 m/s when it strikes a nail and comes to rest after…

A: Given:Weight of hammer (M) = 0.5 kg.Horizontal velocity of hammer (u) = 7.5 m/sPenetration of nail…

Q: a a 2.0-kilogram mass to slide the same distan along a tabletop. 2.0 kg 1.0 kg

A:

Q: What net external force (in N) is exerted on a 1400-kg artillery shell fired from a battleship if…

A: Given data:  Mass of artillery shell (m) = 1400 kg Acceleration (a) = 2.80 × 104 m/s2

Q: (c) If the time of contact between the balls is 0.03 s, what is the force exerted by the heavier…

A: Calculate the velocity of lighter after collision by using conservation of momentum. For…

Q: The average speed of a nitrogen molecule in air is about 6.70×102 m/s, and its mass is 4.68×10-26…

A: Given,

Q: (a) What is the initial acceleration of a rocket that has a mass of 1.50×106kg at takeoff, the…

A: mass, m = 1.50×106 kg Force, F = 2×106 N

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 man claims he can safely hold on to a 12.5-kg child in a head-on collision with a relative speed…

A: SOlution: Given that mchild = 12.5 kg v = 116 mi/h = 1161x160x60x16091 m/s v = 51.85 m/s ∆t = 0.13 s

Q: c). Suppose the magnitudes of the force of friction on the blocks are 4.0 N and 8.0 N respectively.…

A:

Q: One of the first ion engines on a commercial satellite used Xenon as a propellant and could eject…

A: Given data: The mass loss rate, dM/dt= 2.98 × 10−6 kg/s. The exhaust speed, vm= 3.04 × 104 m/s.…

Q: c)A system can have a nonzero velocity while the net external force on it is zero. Describe such a…

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Q: The front 1.20 m of a 1400 kg car is designed as a "crumple zone" that collapses to absorb the shock…

A: Mass of the car is m= 1400 kg. Length of the "crumple zone" is d=1.20 m. d=t(v2+v1)/2 t=2d/v1…

Q: Part C Rank the automobiles based on the magnitude of the force needed to stop them, from largest to…

A:

Q: The front 1.20 m of a 1,550-kg car is designed as a "crumple zone" that collapses to absorb the…

A: Given values: Mass of the car, m=1550 kg Displacement, ∆t=1.20 m Initial velocity, u=23.0 m/s Final…

Q: A puck of mass 30g slides across rough ice, experiancing a frictional force of 0.20N. If it was…

A: Mass of puck(m)=30 gm=30 x 10-3 kg -----(1) [Given]  [Using 1 gm=10-3 kg]  Frictional force,(F)=0.20…

Q: During an Olympic 100-m sprint race, Usain Bolt, the world record holder in that race, quickly…

A: Given: Mass,m=94kgAcceleration due to gravity,g=9.8m/s2Contact Force,FC=2.8×103N a) The expression…

Q: Part A Find the magnitude of the final velocity of the 0.142 kg glider. Express your answer in…

A:

Q: (b) Let the eastward-moving car have a mass of 1,350 kg and a speed 30.0 km/h and the…

A:

Q: The average speed of a nitrogen molecule in air is about 6.70 x 102 m/s, and its mass is 4.68 3…

A:

Q: A 0.300 kg hammer is moving horizontally at 6.00 m/s when it strikes a nail and comes to rest after…

A: Mass of the hammer,  m= 0.300 kg Speed of the hammer initially, u = 6.00 m/s Speed of the hammer as…

Q: 1.  A racquetball is hit straight upward with an initial velocity of 222m/s. The mass of a…

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Q: The front 1.20 m of a 1,450-kg car is designed as a "crumple zone" that collapses to absorb the…

A:

Q: B) Two objects of the same mass have velocities illustrated by the vectors below. They collide and…

A:

Q: a. What net external force is exerted on a 1150.0 kg artillery shell fired from a battleship if the…

A: Mass of artillery shell is Ms = 1150 kg acceleration of the artillery shell is, a = 2.40×10⁴ m/s²

Q: At a shooting competition, a contestant fires and a 10.0 g bullet leaves the rifle with a muzzle…

A: The final velocity of the bullet after hitting the target is zero. Use the kinematic equation to…

Q: The front 1.20 m of a 1,200-kg car is designed as a "crumple zone" that collapses to absorb the…

A:

Q: 0.900 kg hammer is moving horizontally at 6.50 m/s when it strikes a nail and comes to rest after…

A: Given m = 0.9 kg u = 6.5 m/s s = 1 cm = 0.01 m

Q: A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force…

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: The front 1.20 m of a 1300 kg car is designed as a "crumple zone" that collapses to absorb the shock…

A:

Q: The average speed of a nitrogen molecule in air is about 6.70∗10 2 m/s, and its mass is 4.68∗10 -26…

A:

Q: Which of the following statement is true? A No answer B If the resultant force acting on a body of…

A:

Q: A man claims he can safely hold on to a 12.0-kg child in a head-on collision with a relative speed…

A: Given: Mass of the child: m=12 kg speed of the child: v=120 mi/hv=120 mi/h Time of the collision:…

Q: A 1120 kg car with no air bag collides with a railing traveling 21.9 m/s. The 62.5 kg driver, who is…

A: F= (mv-mu)/t  m= 62.5kg  t = 0.05sec  v= 0m/s  u= 21.9m/s

Q: A The product of the mass of the object and the time interval. B The product of the net external…

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Q: ) Find the speed at which Superman (mass=90.0 kg) must fly into a train (mass = 17485 kg) traveling…

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Q: 3. A bullet (m= 0.012 kg) strikes a stationary block (M=6 kg) which is sitting on a table. Just…

A: (a) Apply principle of conservation of momentum mv1+Mv2=m+MvRearrangemv1=m+Mv-Mv2v1=m+Mv-Mv2m…

Q: While rollerblading through your neighborhood, you suddenly lose control and begin coasting down a…

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Q: (a) A block of mass 13.6 kg is sliding at an initial velocity of 4.65 m/s along horizontal surface…

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Q: Q4. An 80 kg stuntman jumps out of a window that is 45 m above the ground. (a) How fast is he…

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Q: 1. During a snowball fight, a 0.20-kilogram snowball traveling at a speed of 10.0 m/s hits a student…

A: given Mass m = 0.20 kg initial speed v = 10 m/s time t = 0.10 s we have to find out magnitude of…

Q: A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. If her downward motion is…

A: Given:mass m = 50 kg h =10.0 m initial velocity  u = 0 m/s time in water t2 = 1.90 sec   we will…

Q: The front 1.20 m of a 1,350-kg car is designed as a "crumple zone" that collapses to absorb the…

A:

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.