Taking all of your books and notebooks home to study for final exams results in your backpack having a mass of 9.63 kg.  How much does your backpack weigh?

Q: You pull upward on a stuffed suitcase with a force of 140 N, and it accelerates upward at 0.770…

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Q: A student lifts a 1kg object vertically at a velocity of 1 m/s . What is the magnitude of the force…

A: Given Mass of an object is m = 1 kg Acceleration due to gravity is g=9.80 m/s^2

Q: To lift a patient, four nurses grip the sheet on which the patient is lying and lift upward. If each…

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Q: The Lamborghini Huracan has an initial acceleration of 0.80g. It’s mass, with a driver, is 1510kg.…

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Q: An object that weighs 75 N is pulled on a horizontal surface by a horizontal pull of 50 N to the…

A: Given weight of the object =75 NWeight = mg =75Mass of the object = 75/g = 75/9.8  = 7.653…

Q: direction

A: The diagram shown below represent the situation given in the problem. Therefore writing the…

Q: An NFL linebacker weighs 252 lbs. What is his mass in kg if 1 lb=0.454 kg?   A runner with a mass…

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Q: An inventive child named Nick wants to reach an apple in a tree without climbing the tree. Sitting…

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Q: Sara pushes a 45 kg box across the floor with a force of 280 N. The coefficient of friction between…

A: Given, m = 45 Kg F = 280 N μ = 0.60

Q: The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 0.18 tons…

A: The weight of squid is 0.18 ton, one ton is equal to 907.185kg.Thus the weight of the squid in kg…

Q: A 14 kg block experiences a net force in the opposite direction of its velocity for 2 s. Its…

A: Given data:  Mass (m) = 14 kg Time (t) = 2 s Change in velocity (ΔV) = 9 m/s Required: The magnitude…

Q: Two force sensors are connected together. One sensor is attached to a wall and the second sensor is…

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Q: A ship is sailing with a constant speed of 18 m/s. The ship has a mass of 2500 kg and water…

A: Speed of ship v=18 m/s Water resistance force = 450 N

Q: A chain of mass 2 kg is resting on a table with half of its length hanging over the edge of the…

A: The force acts on the table is due the chain and it is called as  Normal force. It is a type of…

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

A: Given; Body having mass= 5kg is 50 NFind weight of a boy having mass 50 kg  a. kgf   b. N

Q: A worker has to apply a horizontal force of 750 N to overcome the force of static friction between a…

A: Solution: The coefficient of static friction is defined as the maximum force applied to the normal…

Q: You are standing on the floor of a stationary elevator.  You weigh 99.7 kg, what is the magnitude of…

A: Given  Mass of man m=99.7kg Free body diagram is shown below

Q: A horizontal force is applied to a box of books having a 21 kg and resting on a wooden table. How…

A: The normal force is the force exerted by an object (in this case, the table) in response to an…

Q: A 5 kg box lies on a table.You press on the top of the box with your hand with force of 9N pointing…

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Q: A truck weighing 1,379 N moving uniformly along a horizontal path experiences a friction force of…

A: Solution: Given that A truck weighing 1379 N uniformly along a horizontal path friction force of…

Q: Find the mass of an automobile that weighs 18,241 N.

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Q: A 91.2 kg weight is sitting on the floor. What is the magnitude of the normal force in Newtons?

A: N=W=mg

Q: The Hindenburg departed from Frankfurt, Germany on May 3 and was heading to Lakehurst Naval Air…

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Q: Suppose a baby weighs 4.6 kg at birth and 11.46 kg on his first birthday. How much weight did the…

A: Mass at the time of birth = 4.6 kgAfter 1 year = 11.46 kgWeight gain = ?

Q: A vendor pulls a 250 N cart filled with pop cases so that it rolls along a level floor where the…

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Q: A horizontal force of 130 N is applied to a stationary wooden box in one direction, and a 810 N…

A: From Newton’s first law of motion, the block to remain stationary the net force acting on the block…

Q: A 1,600-kg mid-size car is parked on an inclined road. Because of the weight of the car and its…

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Q: You find your mass to be 42 kg on a weighing machine. Is your mass more or less than 42 kg?

A: A weighing machine measures the weight of a body and is calibrated to show mass. When we stand on a…

Q: A person weights 686 Newtons. On their way home they see an Ice patch .they run and slide across the…

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Q: Charles went ice skating over the weekend with Krupa. Charles has a mass of 12 kg and was standing…

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Q: Jason is pulling a box across the room. He is pulling with a force of 23 newtons and his arm is…

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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: Hannah is pushing her canoe into the water. She pushes with a force of 24.4 N, causing the canoe to…

A: Force=F=24.4 NAcceleration=a=0.72 m/s2

Q: A 1750 kg car applies it’s brakes and comes to a stop . If the coefficient of friction between the…

A: Mass of the car m = 1750  kg Coefficient of friction between the car tire and the asphalt is μ=0.8

Q: You are standing on the floor of a stationary elevator.  You weigh 92.2 kg, what is the magnitude of…

A: Solution as

Q: You push a grocery cart with a force of 30 N and it accelerates at 2 m/sec2. What is the carts mass

A: Force , F = 30 N Acceleration , a = 2 m/s2 . To find = Mass

Q: Two people play tug of war. The 100-kg person on the left pulls with 1,200 N, and the 70-kg person…

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Q: What is the mass of a book that weighs 3 N at a location where g = 9.81 m/s2

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Q: A box lies on a frictionless table. A force of 19.5 Newtons pulls the box to the right, while a…

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Q: A child pulls a 20 kg sled with a rope that makes an angle of 30° with the ground. The tension in…

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Q: In a tug-of-war, each man on a 6-man team pulls with an average force of 300 N. What is the tension…

A: In the game of tug of war , both the tem on the either side of the rope pulls the rope, so that…

Q: A net force of 20 N is applied to a cart to cause it to change its velocity from 1.8 m/sec to 12…

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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: Jason is pulling a box across the room. He is pulling with a force of 21 newtons and his arm is…

A:

Q: An object weighs under the influence of three forces; The first force, 33.0N, acts in a direction…

A: Consider the following figure.   Let the magnitudes of the forces acting on the object be F1, F2,…

Q: What net force is required to make a 15 kg box move at a constant speed of 2.0 m/s.

A: Given: Mass, m = 15 kg; constant speed, v = 2.0 m/s

Q: Weight can be measured as the downward force an object exerts due to its mass times the…

A: Given data: Weight of rock W=6.57 N. Gravitational acceleration on moon is g'=1.622 m/s2.

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!