The parachute on a race car of weight 8,830 N opens at the end of a quarter-mile run when the car is traveling at 38 m/s. What total retarding force must be supplied by the parachute to stop the car in a distance of 1,055 m? (Give the magnitude.)

Q: It takes an elevator in a skyscraper 4. Os to reach its cruising speed of 10. 0 . A 60.0 kg…

A:

Q: 1000 kg F p = 0.1 10°

A: Given, Mass M = 1000 kg  Angle , A = 10° Coefficient of friction, m = 0.1

Q: A runaway baby buggy that has a mass of 33 kg travels at a speed of 1.12 m/s down a level sidewalk.…

A:

Q: A 10 kilogram toy car is pushed by horizontal force of 25 newtons . The car 5 meters because of this…

A: Given ,         mass of the car (m)= 10 kg         horizontal force (F)= 25 N         car moved the…

Q: Also known as a supporting force which balances the weight of an object or a person against a…

A: Supporting force which balances the weight of an object or a person against a contact.

Q: A stone of mass (20 kg) is located on the slope of a hillslope of an angle of (30°). If a wind force…

A: Let m denotes the mass of the stone which is given as 20 kg. Consider θ is the angle made by slope…

Q: A block resting on a horizontal surface and weighing 200N is acted upon by a horizontal force of…

A:

Q: Express answers in significant figures and scientific notation only.    Two   blocks  are…

A:

Q: Toss a ball of mass 3 kg up initially with velocity 3.7 m/s. How high does it go in meters?…

A: Given data:  Mass (m) = 3 kg Initial velocity (Vi) = 3.7 m/s, upward Required: Maximum Height (h)…

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: On an inclined surface with angle of 25o from the horizontal, a block slides down the incline with a…

A:

Q: A ball is dropped at 1.5 meters above the ground in 1.2 seconds. What is its velocity

A: When the ball reaches ground its displacement is s=-1.5 m Time taken to reach ground t=1.2 s The…

Q: One end of a rope is tied to a 11 kg hanging weight. The rope goes over a pulley and the other end…

A:

Q: A 23 kg box is dragged 4.7 meters across the floor by a rope that is angled at 66degrees with the…

A:

Q: A truck is driving down the road at a constant velocity. List ALL the forces acting upon it. *…

A:

Q: A bottle falls from a place with a height of 1200m,  assuming g=10m/s^2 if there was no air…

A: Given data:  Initial velocity (Vi) = 0 m/s, dropped Height (h) = 1200 m Acceleration (g) = 10 m/s2,…

Q: A woman stands on a spring scale in an elevator. At which situation is her apparent weight greates

A: SOlution: if standing on the spring scale in elevator. In what situation the weight will greater.

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

A:

Q: A 2.95 kg ball hangs at one end of a rope that is attached to a support on a railroad car. When the…

A:

Q: Two objects are dropped simultaneously from a building with a height of 15 meters. The objects weigh…

A: Two balls having two different masses are dropped from the same height. The only acceleration that…

Q: What does it mean if we say an object is in freefall? The only force acting on it is gravity. The…

A: Freefall of an object is defined as the motion of an object , under the force of gravity alone .…

Q: If Michael Jordan has a vertical leap of 1.29 m, then what is his take off speed?

A: Given data: Vertical height (h) = 1.29 m Required: Take off speed (vi)

Q: The force of the fire and burmt fuel coming out of the bottom of a space shuttle is the action…

A:

Q: You are trying to lift a stack of books off the table. The stack of books has a mass of 15 kg. What…

A:

Q: At the end of an amusement park ride, it is desirable to bring a gondola to a stop without having…

A:

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: he force of 10 N is making an angle of 30 ° with the horizontal. Its horizontal component will be 4…

A: Given: The magnitude of the force is 10 N.             The angle made by the force with the…

Q: A bowling ball weighing 60.0 N initially moves at a speed of 4.20 m/s. How long must a force of 47.5…

A:

Q: An airplane takes 5 hours to travel a distance of 4800 miles with the wind. The return trip takes…

A: Write the expression of speeds when airplane travels with the wind. vp+va=48005vp+va=960 miles/h…

Q: A 900-kg car is going 20 m/s along a level road. How large a constant retarding force is required to…

A: Given data: Mass of the car = 900kg Speed of car along the road(v)= 20m/s Required distance to stop…

Q: A packing crate slides down an inclined ramp at constant velocity. Thus we can deduce that a net…

A: Correct answer a) a net downward force is acting on it

Q: An antique mahogany Igorot bust, that weighs 40.6 kilograms, on a frictionless ramp is attached to a…

A:

Q: Choose the correct direction for each of the following for when the ball is at the top of the path.…

A:

Q: A car weighing 1.2 tons. Its engine generates a force of 2000 Newtons. Find the distance traveled by…

A: Given mass of the car = 1.2 tones = 1200 kg ( 1 ton =1000 kg ) . Also engine force =2000 N . So…

Q: A locomotive exerts a constant force of 6.55 × 105 N on a train that has a mass of 1.39 × 107 kg.…

A: Write the given values with the suitable variables. F=6.55×105 Nm=1.39×107 kgu=0 m/sv=74.3 km/h=74.3…

Q: Two masses are connected by a string which passes over a pulley with negligible mass and friction.…

A:

Q: A pig of mass 500kg stands in an elevator. The normal force exerted on the pig by the elevator floor…

A:

Q: A ball is thrown downward from the top of a tower with a speed of 6 meters per second. It took 3…

A:

Q: Calculate the force needed to bring a 950-kg car to rest from a speed of 90.0 km/h in a distance of…

A: Using third equation of motion i.e. Given : v=0 m/s, u=90 Km/h = 25 m/s, s=120 m

Q: A boat is pulled into a dock by means of a winch 2 meters above the deck bf the boat (see figure).…

A: Solution: Here, the speed of the boat is 1.5m/s. Calculate the horizontal distance covered by the…

Q: An object has a mass of 40 kg . It accelera a horizontal surface at the rate of 6m/s^2 friction…

A: We know that the newton second law is given as  Fnet= ma  where m is the mass and a is the…

Q: A car weighing 1.2 tons. Its engine generates a force of 2000 Newtons. Take enough time to reach a…

A:

Q: A box with a mass of 10 kg is at rest on a table. The normal force acting on the box is 98 N up 989…

A: Newton's 2nd law is defined as F=ma Here F is the net force, m is mass and a is acceleration.

Q: A Boeing 747 jumbo jet with 400 passengers and a mass of 85,000lbs requires a takeoff speed of about…

A: Given  Mass of plane m=85000lbs=85000×0.454 kg=38590kg  Initial speed u=0 m/s Final speed…

Q: In one of the experiments, the trolley of mass 0,2 kg is on a frictionless horizontal table. The…

A: Given: The mass of the trolley is 0.2 kg. The mass of the hanging block is 0.05 kg. The free-body…

Q: An object with a mass of 4kg lies on a rough plane inclined at 20 degrees to horizontal. A force of…

A: mass = 4 kg angle = 20 degree F = 35 N a = 2.5 m/s2

Q: A stone is dropped from rest at the top of a mine It takes 39 s for a stone to fall to the bottom of…

A: Given time taken by stone to reach at the bottom t = 39 s We have to find out depth of the shaft.

Q: An aircraft weighing 19,658 N returns to the aircraft carrier and lands. It goes from 389.3…

A:

Q: A 9.0-kg hanging weight is connected by a string over a pulley to a 5.0-kg block sliding on a flat…

A:

Q: A stone is dropped from the edge of a cliff and hits the ground below in 3 s. The hight of the cliff…

A: Given data:  Initial velocity (V0) = 0 m/s Time (t) = 3 s Required: Height of the cliff

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!