A boy having a mass of 75 kg holds in his hands a bag of flour weighing 40 N. What is the normal force on the boy’s feet?

Q: A force of magnitude 9.65 N pushes three boxes with mass M1=1.30 kg, and M2=3.20 kg, and M3=4.90 kg.…

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Q: Alice is pushing a 20 kg cart to the left, Bob is pushing back to the right. The cart is moving at a…

A: Alice is pushing a 20 kg cart to the left, Bob is pushing back to the right. The cart is moving at a…

Q: A 50 kg box is initially at rest on the ground. Which of the following forces forms a force pair…

A: The force of gravity is a force that attracts any body or object towards the center of the earth. It…

Q: Two blocks are in contact on a frictionless table. A horizontal force is applied to the larger…

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Q: A man is standing in a room with a low ceiling. He has raised his arms and pushing against the…

A: The objective of the question is to find out the force exerted by the floor on the man. This can be…

Q: Your friend is on a skateboard. His mass is 70 kg. You push him with a force of 200 N. He…

A: Newton's third law of motion states that for every action, there is an equal and opposite reaction.…

Q: What was the total impulse delivered to the object from x = 0 to x = 30 meters? What percent of the…

A: Given information: The mass of the object (m) = 5.0 kg Assumption: initial velocity (u) = 0 m/s From…

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

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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 crate with a mass of 30 kg rests on a floor. On top of the crate stands a 45-kg girl. What is the…

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Q: a. 1.95 N b. 0.75 N c. 1.00 N

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Q: Blocks with masses of 3.0kg, 4.0 kg, and 5.0 kg are lined up in a row on a frictionless table. All…

A: Given: The mass of the first block is m1=3 kg. The mass of the second block is m2=4 kg. The mass of…

Q: The figure shows two blocks that are connected by a cord that passes over a frictionless pulley. The…

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Q: A 63.4 kg person is standing inside an elevator. The elevator is moving upward at 2.78 m/s and is…

A: The write the expression for the net force, Apply Newton’s second law of motion,

Q: A 74.2 kg person is standing inside an elevator. The elevator is moving upward at 2.98 m/s and is…

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Q: A 58.9 kg person is standing inside an elevator. The elevator is moving upward at 3.68 m/s and is…

A: The given values are.

Q: What will be the weight of a boy of mass

A: Given; Weight of a body mass;   ⇒2 kg=20NWhat will be the weight of a boy of mass 42 kg ?

Q: A 50.0 kg girl and a 100 kg boy, stand on a frictionless frozen lake at a distance 6.0 m apart.…

A: mass of girl = 50 kg mass of boy = 100 kg distance between girl and boy = 6 m force exerted by boy…

Q: An airplane has a mass of 3.13*10^4 kg and takes off under the influence of a comstant net force of…

A: The pilot is inside the airplane, so the acceleration of the airplane and the pilot must be same.…

Q: The barrel pushes back with a force of magnitude (Answer in N.)

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Q: net force of 20 N is acting on a falling object. The object experiences air resistance of 6.0 N. If…

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Q: Two blocks A and B with mA = 1.1 kg and mB = 0.88 kg are connected by a string of negligible mass.…

A: The objective of the question is to find the acceleration of the blocks and the tension in the…

Q: Two boxes A and B are connected by a lightweight cord and resting on a smooth (frictionless) table.…

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Q: Alex is asked to move two boxes of books in contact with each other and resting on a frictionless…

A: a)as per newton's second law of motionFnet=maFp=mA+mBaa=FpmA+mB =9.3 12.1+7 =0.487 m/s2

Q: Weight of a body mass 6.0 kg is 60 N. What will be the weight of a boy of mass 65 kg. (a) kgf (b) N

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Q: A lamp hangs from the ceiling of an elevator as it slows to a stop as it approaches the top floor in…

A: Tension in chord T = 90 N Acceleration a =3.2 m/s/s slow rate

Q: A stack of two crates is being accelerated upwards by two cables. The cables are directly attached…

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Q: Two people are pulling a heavy 95 kg box across the floor as shown in the figure. Person A is…

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Q: A 90 kg woman on roller skates pushes a 35 kg girl, also on roller skates, with a force of 50 N. The…

A: By Newton's third law "For every action in nature is an equal and opposite reaction"

Q: Two people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an…

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!