A massive stone and a stone of one-half the mass are dropped from a tall building at exactly the same time. (Assume air resistance is negligible.) When both stones reach the ground: Will heavier mass play a factor in above?

Q: Looking outside of your window, you notice a bird gliding in the air at a constant speed. Should air…

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Q: A 1500-kg car traveling 65 km/hr can come to a stop within a distance of 25 meters when the brakes…

A: We need to calculate the friction force acting on the 1500-kg car.

Q: you throw a 1.5 kg stone straight up into the air initially at rest your hand exerts a force of 151N…

A: From newton’s second law of motion.

Q: A freight car weighing 20 tons and moving at a speed of 7 miles per hour on a horizontal track…

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Q: How fast will it be going when it hits the ground

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Q: A helicopter pushes air down, which in turn pushes the helicopter up. Which force affects the…

A: When the fans of the helicopter rotates, it pushes air down.  As the air is pushed down, due to an…

Q: if mr.berkley is able to slow down his car from 21 m/s to 8m/s while covering 25 meters, what was…

A: Let the mass of the car be m. Apply the third kinematic equation.

Q: Softball mass of 0,29 kg is pitched of 86.4 km/h. Whin it reaches the plate, it may haved slowed. by…

A: Given, The mass of the soft ball, m =0.29 kg  Speed, vi =86.4 km/hr = 24 m/s  Distance, d =15 m  And…

Q: If two objects having the same size fall through air at different speeds, which encounters the…

A: Air resistance force is increasing with the increase of speed and the frontal area of the object.

Q: A total of 4900 J is expended in lifting a 50 kg mass

A: Given.  The energy expanded, E = 4900 J mass, m = 50 kg

Q: Consider a mass of 1 kg accelerated 1 m/s2 by a force of 1 N. Show that the acceleration would be…

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Q: To be able to accelerate a 2500 kg truck from 10m/s to 20 m/s in 2.0 s, force should be

A: Mass of the truck m=2500 kg Initial velocity of the truck u=10 m/s Final velocity of the truck v=20…

Q: A baseball is hit into the air with a bat. When does the ball have the greatest KE? O When it leaves…

A: By conservation of mechanical energy, The sum of kinetic energy and potential energy is constant…

Q: How does the average number of drops required to break open awhelk depend on platform height for a…

A: The average number of drops required to break open a whelk depends on platform height.

Q: A boxer can hit a heavy bag with great force. Why can't he hit a piece of tissue paper in midair…

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Q: When a heavy football player and a light one run into each other, who exerts more force?

A: Newton's law of equation of motion states that the external force exerted by any object on the other…

Q: A bicycle of mass 14.6 kg and a rider of mass 50kg generate a net force of 12N how fast are they…

A: Given data: Mass of bicycle (m) =14.6 kg Mass of rider (M) = 50 kg Net force (F) = 12 N Time of…

Q: Consider a 40-kg block of cement that is pulled sideways with a net force of 200 N. Show that its…

A: Consider a cement block having mass m and it pulled sideways with the force F.

Q: Two boxes of different masses connected by a cord and were thrown upward together. If not consider…

A: In this case, two boxes of different masses are connected by a cord and were thrown upward together…

Q: When you push horizontally on a crate on a level floor that doesn’t slide, how great is the force of…

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Q: Consider a business jet of mass 30,000 kg in takeoff when the thrust for each of two engines is…

A: The equation for the acceleration is given by,

Q: Forces of 3.0N and 4.0N act at right angles on a block of mass 2.0kg. Show that the acceleration of…

A: Write the expression for the resultant of two forces on right angle to each other.

Q: 3. Ône company claims that their 1200-kg car can accelerate from rest to a speed of 25 m/s in a time…

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Q: How does increasing drag affect the distance a paper airplane will travel?

A: A paper airplane can be affected by various force like its weight ,drag etc.

Q: A woman skis from rest a downhill of 65 m high. If the friction is neglected, calculate her speed in…

A: Energy conservation: As we know energy can neither be created nor destroyed it can only be converted…

Q: Consider a business jet of mass 30,000kg in takeoff when the thrust for eachn of two engines…

A: Here, the net thrust force is twice the thrust developed by each engine.

Q: If you climb a ladder and drop a ball from different heights, due to gravity, both balls -- one at…

A: At higher height, the ball drops down from the ladder. During the duration of the fall, the ball’s…

Q: You awaken in the chance to save yo bedroom door and window. You happ Superball next to y only time…

A: Force is given by,

Q: If air resistance can be neglected ,how does the acceleration of a ball that has been tossed…

A: When a ball is tossed, the ball moves toward upward direction for a while because of the initial…

Q: What is the effect of air resistance on velocity of a projectile?

A: Objects moving through air are slowed down due to air resistance, sometimes called drag.

Q: A baseball is popped straight up into the air and has a hang-time of 6.25 s. Determine the height to…

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Q: How much force was required to slow the car down to 2 m/s^2 if the mass of the car is 8000kg?

A: Given data: Magnitude of acceleration (a) = 2 m/s2 Mass (m) = 8000 kg Required: Force (F)

Q: If a baseball is dropped from a skyscraper, what will its speed (velocity) be after 4.5 seconds…

A: let baseball is dropped with zero initial velocity u=0 since there is no air resistance a=g=9.8 m/s2…

Q: What effect does air resistance have on falling objects?

A: Air resistance imparts a force that opposes motion in falling objects . So acceleration throughout…