A tennis ball is dropped straight down from the top of a building. Assuming there is no air resistance, what is the force of gravity if the mass of ball is 0.8kg?

Q: What is the net force on a 50 kg skydiver when she hits terminal velocity?

A: At terminal velocity the drag force on the skydriver is equal to the force due to gravitation.…

Q: If 1000 N force is required to accelerate an object to the rate of 5m/s?, what will be the weight of…

A: Given: Force applied, F=1000 N. Acceleration, a=5 m/s2. Require: Weight, w=?

Q: A 5kg dog has several balloons tied to it, applying 20 N of upward tension force. How much normal…

A: Mass of the dog M=5 kg The upward tension T=20 N The free body diagram of the dog and balloons are…

Q: A sled of mass 88 kg is being pushed up a slope with an applied force of 910 N. The slope is…

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Q: What is the tension in the rope when a 15kg sign is hanging from the ceiling?

A: Given data The mass is m=15 kg The free-body diagram of the rope is as follows, Here T is the…

Q: If you can push with 300 N of force and the coefficient of friction is 0.5, what is the largest mass…

A: Given Data:- Applied force is F=300 N Coefficient of friction is μ=0.5   Required:- Largest mass…

Q: A dog is attempting to push a 10kg doggy bed across a rough floor, but the bed won't slide. The…

A: we know that according to Newton's third law of motion, every action has an equal and opposite…

Q: A 65.7-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is…

A: Given  The mass of the person is m = 65.7 kg. The upward acceleration is a = 1.77 m/s2.  The…

Q: Sam pulls a 5 kg box with a force of 40 N and the box accelerates across the ground at 0.3 m/s?.…

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Q: What acceleration will result when a 80 N force is applied to a 6.4 kg object?

A: We know F=ma   F=force= 80 N m= mass = 6.4 kg a=acceleration

Q: What is the force in Newton's acting on a 7.0 kg package of nails that falls off a roof and is on…

A: Answer:- Given  Mass of package of nails (m) = 7.0 kg  Acceleration due to gravity (g) = 9.8 m/s2…

Q: How much horizontal force would be required to make a 15 kg box accelerate at 1.2 m/s if friction…

A: Mass- 15 kg a = 1.2 m/s2  Frictional force = 18 N

Q: Joe uses a force of 250N to push a box with a mass of 95 kg up a 8 degree incline. If coefficient of…

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Q: A 150-g fish is swimming toward its food with an acceleration of 2 m/s/s. If the amount of friction…

A: Given that Mass m = 150 g Acceleration a = 2 m/s2 Friction force of water is f = 2 N

Q: What is the force due to the acceleration caused by gravity on a mass of 35.7kg if it is placed on…

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Q: What is the force on a 1000 kg elevator that is falling freely at 9.8 m/s ?

A: Given data The mass of the elevator is m=1000 kg The accleration during the free fall is a=9.81 m/s2…

Q: A skier slides down a steep hill that is an angle of 60 degrees up from horizontal. If there was no…

A: If we want to calculate  component of acceleration parallel to the surface of the inclined plan at…

Q: What is the weight in Newton's of a 6.0 kg package of nails?

A: Required : What is the weight in Newton's of a 6.0 kg package of nails.

Q: What acceleration will result when a 40 N force is applied to a 3.2 kg object?

A: Recall  Newton's second law of motion Fnet=ma Given  F=40 N m=3.2kg

Q: A grocery bag can withstand 300 N of force before it rips apart. How many kilograms of apples can it…

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Q: If a box is pushed with a net force of 75 Newtons and accelerates at a rate of 6.50 m/s2, what is…

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Q: A 10-kg weight is suspended by a rope from a ceiling. If a horizontal force of 5.80 kg is applied to…

A: Suspended weight , W = 10 kg  Horizontal force , F =5.8 kg  To find = angle made with the vertical…

Q: A student weighs 200 N. If he is in an elevator that is accelerating upward at 2.00 m/s/s, what…

A: weight of student (mg) = 200 N Upwards aceleration (a) = 2 ms2

Q: car weighing 9 kN travels at 80 km/hr. At the foot of an incline of 10%, the engine stops.…

A: Conversion 72*5/18 is 20m/s   now here the whole kinetic energy will be converted into potential…

Q: A 55-kg gymnast hangs vertically from a pair of parallel rings. If the ropes supporting the rings…

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Q: Your father pushed a 2kg box across the floor with a net horizontal force of 10 N. What is the…

A: Given data:  Mass (m) = 2 kg Net horizontal force (Fnet) = 10 N Required: Acceleration (a)

Q: A 2000 kg rocket is sitting on a landing pad.  What force, in N, is needed to overcome gravity…

A: Introduction: Rocket motion is the famous example of Newton’s laws of motion. According to Newton’s…

Q: The parachute on a race car of weight 8,850 N opens at the end of a quarter-mile run when the car is…

A: Given Data: Car weight, Initial velocity,    Final velocity, Distance,

Q: A traffic light that has a mass of 10kg is suspended by two wires as shown. What is the tension in…

A: The mass of a traffic light is given as, The free-body diagram of a hanging traffic light is shown…

Q: Standing on your bathroom scale in an elevator, you are shocked to see that you weigh 1.5 times your…

A: Let the weight of the person is W=mg Increased weight is WI=1.5mg

Q: A student applies an upward force of 150 N to an 8-kilogram backpack to lift it.  Calculate the…

A: Given: Mass of backpack m = 8 kg. Force applied in upward direction F = 150 N

Q: The value of gravitational pull on the moon is 1.6 m/s/s.  What is the weight of a 75 kg astronaut…

A: Weight = mass x gravitational pull Here, mass =75kg

Q: A 57.9-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is…

A: Given: mass, m = 57.9 kgacceleration, a = 1.84 m/s2Find: The apparent weight when the elevator is…

Q: A mass is suspended from the ceiling in an elevator by a heavy rope. The mass is 80 kg and the mass…

A: Let, the mass be, M=80 kg The mass of the rope, m=2 kg The maximum tension the rope can experience…

Q: What is the weight in newtons of a 7.8 kg package of nails?

A: Formula of weight is as follows; W=mg…

Q: A 62 kg climber falling at 9.4 m/s has their downward motion arrested at a distance of 5.3 m. What…

A: Given, mass of climber=62 kg Speed=9.4 m/s Let tension on a rope be T N

Q: during take off in space, an 75kg is subjected to an acceleration equal to 5 times the pull of…

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Q: An 1700 keg elevator has a cable that can support 25,000 N of force. If it carries ten people at 50…

A: Given, mass of an elevator, m = 1700 kg maximum tension, T = 25000 N mass of the person, m = 50 g

Q: Choose the BEST answer to the following: The force needed to keep a ball tolling along a bowling…

A: The ball rolling along a bowling alley is acted upon by the force of friction during its skid and…

Q: A 950-kg box is pushed with a F - 15000 N up a ramp elevated at an angle of 27°. If it moves at a…

A: The given data are listed below with appropriate variables. Here, m denotes the mass, F denotes the…

Q: A student has a mass of 25 kg. If he stands on a scale in an elevator that is accelerating downward…

A: mass of student (m) = 25 kg Acceleration (a) = 2 ms2

Q: What is the acceleration of a 5000kg body moving on a surface inclined at an angle of 25 .?

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Q: A 2 kg block is on a table with a coefficient of kinetic friction of 0.3.  How much applied force…

A: Mass of block = 2 kg  Coefficient of kinetic Friction = 0.3  Initial speed = 0 m/s  Final speed = 5…

Q: A 2-kg object is moving horizontally with a speed of 4 m/s. How much net force is required to keep…

A: By Newton's First law, when there is no external force applied, the state of motion remains…

Q: A sled of mass 87 kg is being pushed up a slope with an applied force of 853 N. The slope is…

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Q: What is the acceleration of a 15 kg box sliding down a 30 degree (to horizontal) slope if the Uk is…

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Q: A crate is sliding down an incline that is 35° above the horizontal. If the coefficient of kinetic…

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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!