A 4500 kg jet reaches a takeoff velocity of 70 m/s after accelerating from rest for 700 m down the runway. What net force is required from the jet's engines?

Q: As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air…

A: The forces on the ball along the vertical direction will be :The force exerted by the pitcher, F…

Q: Jackie has a car that accelerates at 8.5 m/s2. If the car has a mass of 2300 kg, how much force does…

A:

Q: An 82 kg man drops from rest on a diving board 3.0 m above the surface of the water and comes to…

A: mass of man (m) = 82 kg initial speed of man (u) = 0 m/s Height of diving board above the surface of…

Q: A car has a mass of 1750 kg. If the driver applies the brakes while on a gravel road, the maximum…

A: Given that the value of mass and velocity and maximum friction force. Then We have to determine the…

Q: A rope exerts a constant horizontal force of 280 N to pull a 50kg crate across the floor. the…

A:

Q: A 821-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

A: Given: The mass of the car is 821 kg. The initial speed of the car is 0 m/s. The final speed of the…

Q: You drive an automobile of mass 2.10 x 103 kg from sea level to the top of a mountain 2.05 km high.…

A: Given: mass of automobile m= 2.10× 103 kg Height at which automobile reached from sea level h = 2.05…

Q: Carol wants to move her 32 kg sofa to a different room in the house. She places “sofa sliders,”…

A: Since the sofa is moved with steady speed, the applied force equals the friction.

Q: A 1216-lb object is launched from the ground with an initial upward velocity of 70 ft/sec. The…

A:

Q: A 8.0 x 104 kg spaceship is at rest in deep space. Its thrusters provide a force of 1200 kN. The…

A:

Q: A soccer player starts from rest and accelerates forward, reaching a velocity of 9.00 m/s in 3.00 s.…

A: The equation of motion is, v = u + at9m/s =0+a3.0sa=3m/s2

Q: An elevator, moving upward, decreases in speed from 8.41 m/s to 1.70 m/s in 2.02 s. Assuming…

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Q: A diver of 50kg jumps from a platform 20m high into a pool. If the diver decelerates at a constant…

A:

Q: A certain cable of an elevator is designed to exert a force of 4.5 × 10^4 N. If the maximum…

A: Fmax=mamax+g     m=Fmaxamax+g

Q: A clever coyote uses rocket powered skates to try to catch a roadrunner. The mass of the coyote is…

A:

Q: A hockey puck sits at rest on a frictionless surface. The puck is pushed with a particular constant…

A: We will answer the question using Newton's second law of motion and kinematic equation of motion.…

Q: A 128 lb person steps into an elevator at the ground floor. The elevator accelerates upward at 5.0…

A:

Q: When starting a foot race, a 70.0-kg sprinter exerts an average force of 650 N backward on the…

A: Given Data: The mass of sprinter is, m=70 kg The force exerted by the sprinter is, F=650 N The time…

Q: A bowling ball weighing 54.0 N initially moves at a speed of 5.60 m/s. How long must a force of 36.0…

A:

Q: A freight train has a mass of 1.4x10^7 kg. if the locomotive can exert a constant pull of 8.3x10^5…

A: According to the Newton’s second law, the acceleration of the freight train,Substitute the values,

Q: Joe pushes down the length of the handle of a 14.1 kg lawn spreader. The handle makes an angle of…

A: Given that - mass of the lawn spreader angle time velocity To Find - We have to determine the…

Q: A force of 1.50 N acts on a 0.20-kg carts so as to uniformly accelerate it along a straight air…

A: F=1.5 N m=0.20 Kg   F=m*a a=F/m=1.5/0.2= 7.5 m/s^2

Q: A horizontal force of 5.0 N pushes a 0.50-kg block against a vertical wall. The block is initially…

A:

Q: The froghopper holds the title of the best jumper of the animal world. A 0.0198-gram (1.98 X 10-5…

A: Mass of the froghopper, m = 1.98 x 10-5 kg Initial speed of grasshopper, Vo = o m/s Final speed of…

Q: A 1100-kg car is moving toward the north along a straight road at a speed of 20.0 m/s. The driver…

A: Given data as per the question Weight of the car = 1100 kg speed =20 m/s

Q: A 15080 kg car is traveling with a pseed of 15.0 m/s. What is the magnitude of the horizontal net…

A: Given mass of the car M = 15080 kgInitial Speed of the car v = 15 m/sQuestion is to find the net…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: