When a ball is tossed straight up,it momentarily comes to a stop at the top of its path. Is it in equilibrium during this brief moment? Why or why not?

Q: A stationary ball of mass 0.4 kg is kicked so that the kicker's foot departs at 5 m/s in a direction…

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Q: A car heading north collides at an intersection with a truck heading east. Truck and car have equal…

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Q: To open a very heavy door, where is the best place to push the door?

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Q: How can you increase the linear momentum of something? A A. Increase its mass. B B. Increase its…

A: According to question we need to define  linear momentum.

Q: Imagine a scenario whereby a sky diver jumps out of a plane and begins to fall towards the ground,…

A: Motion can be uniform or accelerated. Force brings about motion and changes in it. When a body falls…

Q: At what speed will the car begin to skid sideways?

A: Answer is 18.52 m/s .

Q: The weight of a body does not produce any moment of force

A: Moment of force = torque = r̅ ×F̅

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: When velocity of elevator does not change and falling with constant velocity. The weight of 60 kg…

A: When object falls with constant there is zero acceleration acts on the body of object. W=MaW=M(0)W=0…

Q: The automobile has a mass of 2 Mg and center of mass at G. Determine the towing force F required to…

A: Let m denote the mass of the automobile. Let g denote the acceleration due to gravity. Let θ denote…

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: A baseball is thrown from the outfield toward home plate.(a) True or False: Neglecting air…

A: Part A:

Q: The automobile has a mass of 3 Mg and center of mass at G. Determine the towing force F required to…

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Q: The automobile has a mass of 2 Mg and center of mass at G. Determine the towing fore F required to…

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Q: You catch a ball within 1 millisecond from when the ball touches your hand. If the ball undergoes a…

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Q: A  0.022 kg bullet strikes and becomes embedded in a 2-kg block of wood placed on a horizontal…

A: The given mass of the bullet is mb = 0.022 kg and the mass of the wooden block is m = 2 kg the…

Q: While moving into his new house, Voytek is sliding a heavy box of books across his bedroom floor.…

A: To start the block to move ,the applied force must be greater than the static friction.As the body…

Q: If, by some suitable mechanism, the falling body had been given an initial downward push instead of…

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Q: You are with 20 other people on a boat at rest in frictionless water. The group's total mass is 1560…

A: Given that ---  total mass = 1560 kg boat's mass = 1.2×104 kg.  The entire party walks = 6.3 m…

Q: A whole brick has more mass than half a brick, thus the wholebrick is harder to accelerate. Why…

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Q: The applied momentum and the final momentum acquired: A. will never be the same B. will always be…

A: Sol. The applied momentum and the final momentum acquired by the body is same. If external force…

Q: A sprinter with a mass of 75 kg reaches a speed of 8 m/s during a race. Find the sprinter's linear…

A: The formula for momentum is Momentum= mass × velocity

Q: A car of mass 1200 kg is accelerated from rest to a speed of 72 km/hr in 40 seconds. Calculate the…

A: Given data: Mass of car is, m=1200 kg. Initial speed of car is, u=0 m/s.…

Q: Three objects of mass 2.5 kg each are placed at the vertices of a right-angled triangle whose sides…

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Q: 1000 O 6.7 O 3.3 10 O 5 O 2

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Q: If you carry a heavy bag of groceries and bang your hand against the wall, the concept that best…

A: Here, the situation is we carry a heavy bag of groceries and bang our hand against the wall , we…

Q: At the same instant that a 0.50 kg ball is dropped from a distance of 25 m above the ground, a…

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Q: A toboggan of mass 9.0 kg is moving horizontally at 24 km/h. As it passes under a tree, 13 kg of…

A: Mass of toboggan, m1=9 kg Initial speed of toboggan, u1=24 km/h Mass of snow, m2=13 kg Let the final…

Q: Which of the following has more momentum? A jeepney at rest or a student running to attend his…

A: Momentum is directly proportional to the mass and velocity. p=mv

Q: Adonai accidentally unholds a saucer that falls on the floor vertically. It splits into three parts…

A: According to the conservation of momentum, injitial momentum must be equal to the sum of momentum of…

Q: 6. Two children float motionlessly in a space station. The 20-kg girl pushes on the 40-kg boy and he…

A: Given: The mass of the girl is 20 kg. The mass of the boy is 40 kg. The final velocity of the boy is…

Q: Which safety spring at the base would help in lessening the impact of a falling heavy body? The one…

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Q: When a body at rest breaks into two pieces of equal masses, its parts will move O in the same…

A: In absence of external force on the body, the linear momentum remains conserved.  According to…

Q: A block of mass M rests on an inclined plane with a smooth surface making an angle of 340 with the…

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

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Q: Explain why or why not a ball thrown straight up has zero velocity at its highest point. Is the ball…

A: A ball is thrown upwards

Q: A sprinter with a mass of 79 kg reaches a speed of 8 m/s during a race. Find the sprinter's linear…

A: when a body/particle moves on a plane or straight path, amount of motion obtained is called linear…

Q: While jumping on a trampoline, sometimes you land on your back and other times on your feet. In…

A: Write the expression for the impulse. ∆P=Fnet∆t

Q: On roller blades you horizontally toss a ball away from you. The mass of the ball is one tenth your…

A: (given) Firstly, horizontally toss a ball away from a body. Mass of the ball is one tenth a mass of…

Q: The center of mass is _______________ on the body or object. Select one: a. sometimes b. never c.…

A: Centre of mass is the point where the entire mass of the object is concentrated. Let the object is…

Q: If your hands are wet and no towel is handy, you can remove some of the excess water by shaking…

A: If your hands are wet and no towel is handy, you can remove some of the excess water by shaking…

Q: Two children float motionless in a space station. The 20 kg girl pushes the 40 kg boy and the boy…

A:

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”