When blocking in football, a defending lineman often attempts to get his body under the body of his opponent and push upward. What effect does this have on the friction force between the opposing lineman’s feet and the ground?

Q: a mass of m=22 kg is hanging from a string connected to a hook on the ceiling. The configuration is…

A: Given: mass attached with string is m=22kg  The system is at rest

Q: The block on the left has a mass of 6-kg and is in contact with the 4-kg block on the right.  Both…

A:

Q: When two objects interact by exerting forces on each other, the forces are said to be a(n) pair.

A: Given that:- Two objects interact by exerting forces on each other.

Q: A high diver of mass 57.5 kg steps off a board 10.0 m above the water and falls vertical to the…

A: According to Newton’s third law, the force exerted by water on diver is equal to the force exerted…

Q: A high diver of mass 56.1 kg steps off a board 10.0 m above the water and falls vertical to the…

A: Write the kinematic equation.

Q: 3. A 4-kg block and a 2-kg block can move on the horizontal frictionless surface. The blocks are…

A: Given : Force (F) = 12 N Mass (m1) = 4 kg Mass (m2) = 2 kg

Q: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

A: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

Q: A boy stits at rest on the floor. Which of the following statements are true? Check all that apply.…

A: Force of gravity (Weight) is acting downwards. Normal force acts upwards. Even though normal force…

Q: and 8.12 The coefficients of friction are u, = 0.40 and 0.30 hetween all surfaces of contact.…

A:

Q: Two robotic arms are used to push boxes from one place to another across a smooth surface (assume…

A: Required : Which arm will make the boxes reach a higher speed.

Q: A child pushes on a toy wagon with a net force of 20.0N. the wagon accelerates from a speed of…

A:

Q: A car moving with a velocity of 20m/s in the north direction, is acted upon by a pair of balanced…

A: According to Newton's First law a body will continue to move with same velocity or remains in rest…

Q: A block of mass m= 4 kg rests on a larger block of mass M= 12 kg and the two are connected by a…

A:

Q: A 1000 kg car and a 2000 kg truck are both driving at the same speed. The both have tires with the…

A: Force acting on a moving body in case of friction is present is given as, F=ma-f=ma-μmg=maa=-μg

Q: The coefficient of static friction between block A of mass 20 kg and the table as shown in the…

A:

Q: A diver with a mass of 110 kg on a high board 10.0m above the water’s surface dives off the board…

A:

Q: The 5 N block is sitting on a table top which weights 16 N. The table has three legs. The force…

A:

Q: A 60 kg block slides along the top of a 100 kg block. The lighter block has an acceleration of 3.7…

A: Equilibrium condition in the horizontal direction for mass m1

Q: If a fly collides with the windshield of a fast-moving bus, which experiences an impact force with a…

A: EXPLANATION- Because the mass of the fly is considered as little this means that the mass of fly is…

Q: Skydiving tunnels have become popular attractions, appealing in part to those who would like a taste…

A: The mass of Natalya is m = 46.8 kg. The air resistance experienced by Natalya in the upward…

Q: A small car and a large pickup truck are on the same road. Both have tires made of the same…

A:

Q: Two tug boats are pushing an ocean liner, as shown in Figure . Each boat is exerting a force of 400…

A: Each force = 400 pounds

Q: Where will friction be greater, when the plane is horizontal or tilted? Why?

A:

Q: A study of bluefish locomotion found that their tail motion produces an average thrust of 0.65 N.…

A:

Q: When a body is in equilibrium. ( choose one) 1. must have zero momentum 2. no forces can be acting…

A: when a body in equilibrium it means net force on the body is zero.

Q: Object's mass is 15 kg is resting on a table. An external force ( 1O N) act with angle ( 30) on this…

A:

Q: A box of mass 7.7 kg is given an initial speed of vo = 5.1 m/s along a ramp as indicated in the…

A:

Q: A 4-kg box and a 2-kg box can move on the horizontal frictionless surface. The box are accelerated…

A: Force applied on 4kg=+12N

Q: When we apply a force to an object under frictionless conditions, then the object will

A: The force on the object under frictionless condition is, F=ma Here m is the mass of the object. a is…

Q: person dives toward the bottom of a swimming pool, the bouyant force acting on her increases."

A: As per Archemede's principle  Buoyant force =weight of liquid displaced

Q: As you were on a rush on the highway, you accidentally bumped a vehile. Though there were scratches,…

A: As you were on a rush on the highway, you accidentally bumped a vehile. Though there were scratches,…

Q: When catching a foul ball at a baseball game, why is it important to extend your bare hands upward…

A:

Q: A crate is placed on the bed of a truck but is not tied down.  The truck accelerates forward, the…

A: A crate is placed on the bed of a truck but is not tied down.The truck accelerates forward, the…

Q: A car of mass 931 kg coasts on a level road, starting with an initial speed of 15.7 m/s and coming…

A: Given data: Mass (m) = 931 kg Initial velocity (V0) = 15.7 m/s Final Velocity (v) = 0 m/s, coming to…

Q: How much force is needed to accelerate a 66 kg Skier at im/s^2? O 6.6 N O 66 N O 100 N O 10 N

A: Given that, Mass of the Skier, m = 66 kg Acceleration of the skier, a = 1 m/s2 We need to find the…

Q: Two robotic arms are used to push boxes from one place to another across a smooth surface (assume…

A:

Q: There are two forces on the 6.4 kg crate in the overhead view of the figure below, but only one is…

A:

Q: A person pushes a shopping cart with a force of 15 N and the cart starts moving away from the…

A:

Q: A shopper in a supermarket pushes a loaded cart with a horizontal force of 10 N. If the cart has a…

A: Given value--- applied force = 10 N. mass = 30 kg. time = 3 sec. initial velocity = 0 m/sec. We…

Q: You are trying to move a large cabinet across the floor. you push the cabinet but it does not move.…

A: The frictional force is the force that is acting between two surfaces , that is for example,…

Q: 10 A 400-g block originally moving at 12- cm/s coasts 70 cm along a tabletop before coming to rest.…

A:

Q: A 60 kg block slides along the top of a 100 kg block.  The lighter block has an acceleration of 3.8…

A:

Q: A trailer truck enters a 2 percent uphill grade traveling at 66 km/h and reaches a speed of 108 km/h…

A: Given: Mass of cab(mcab)=1800 kgWeight of cab(Wcab)=17658 NMass of trailer(mtrailer)=5400 kgWeight…

Q: You could do this if you wanted to increase friction between two objects:?

A: Frictional force comes into picture due to relative motion between  the objects in contact.

Q: Rank the crates on the basis of the frictional force acting on them. Rank from largest to smallest.…

A: Given:

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: