A 1800 kg car traveling at a speed of 13 m/s skids to a halt on wet concrete where μk = 0.30.    How long are the skid marks?

Q: A 100-kg object moves on a level surface with a coefficient of friction of 0.40. If the initial…

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Q: A small block is released from rest at the top of a frictionless incline. The distance from the top…

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Q: An 8.7 kg block slides with initials speed of 1.66 m/s across a level floor. How far does the block…

A: The equation of motion is given by,

Q: A heavy block of mass 625 kg is suspended by a cable is moving downwards with an initial velocity of…

A: Net force is,

Q: What force is required to accelerate an electron to 1.00 x 10^2 m/s?

A: Given : Acceleration of an electron (a) = 1.00 x 102 m/s2

Q: If there is no friction, calculate the time it takes for the object to reach its highest point.…

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Q: Two football players are pushing a 60 kg blocking sled across the field at a constant speed of 2.0…

A: Considering the motion in the y-direction, Substituting the values and solving gives

Q: A rock (weight 25 N) is suspended from a cable attached to the ceiling of a moving elevator. If the…

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Q: What is the diver's speed (in m/s) when he hits the water?

A:

Q: in the figure m2=60g m1 = 40 g then the ..=acceleration a

A: Given: Mass of  object: m1=40 [g]=0.04 [kg] Mass of  object: m2=60 [g]=0.06 [kg] The acceleration…

Q: What will be its displacement after 5 s when a net force of 6 N acts upon an object with a mass of 2…

A:

Q: A skydiver weighing mg=192lb (with equipment) jumps from a plane. The coefficient of air resistance…

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Q: A 1000 kg car traveling at a speed of 40 m/s skids to a halt on wet concrete where μk = 0.60. How…

A: Given data: Mass of the car m=1000 kg Initial speed u =40m/s Coefficient of kinetic frictionμk=0.60

Q: 50. The speed-time graph of a body is shown below. v m/s 8 3 4 9. 15 The distance covered by the…

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Q: A ball with mass 0.15 kg is thrown upward with initial velocity 20 m/s from the roof of a building…

A:

Q: What will be its displacement after 5 s when a net force of 6 N acts upon an object with a mass of 2…

A: Given data:  Time (t) = 5 s Force (F) = 6 N Mass (m) = 2 kg Initial velocity (v0) = 1 m/s Required:…

Q: An object is on a frictionless inclined plane. The plane is inclined at an angle of 40° with the…

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Q: A block with an initial velocity of 24 m/s slides along a surface with a friction coefficient of…

A: Given  Initial velocity of block (u) = 24m/s Friction coefficient (μ)= 0.30 Solution : - Newton's…

Q: How much time does it take for a rock dropped from a cliff to fall 180 meters? Assume no air drag.

A: Initial velocity (u) = 0 m/s height of cliff (h) = 180 m

Q: A 5.5 kg block that is initially at rest on a frictionless horizontal surface was pulled with a…

A: Given data:  Mass (m) = 5.5 kg Force (F) = 3.8 N Initial velocity (v0) = 0 m/s Final velocity (vf) =…

Q: A 100 kg stunt woman falls from a three-story building that is 10 m high. If she falls into a net,…

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Q: A 13 g bullet pierces a sand bag 32 cm thick. If the initial velocity of the bullet was 68 m/s and…

A: Given data:  Mass (m) = 13 g = 0.013 kg Displacement (d) = 32 cm = 0.32 m Initial velocity (Vi) = 68…

Q: A 2.0 kg otter starts from rest at the top of a muddy incline 85cm long and slides down to the…

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Q: A box of mass 7.3 kg is slid along the floor. The initial speed of the box is 6 m/s and it comes to…

A:

Q: A skier starts to slide from the 20 m high ramp for the first time without speed and without…

A:

Q: A 1000kg car is moving with a constant velocity of 15m/s. Which of the following statements can you…

A: GIven data The mass of the car is given as m = 1000 kg. The car is moving with a constant velocity…

Q: A hockey puck with mass 0.165 kg is pushed across the ice with a constant force of 0.42 N. The…

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Q: Question 7 A car is coasting to the right but slowing down. ос F A G D E B Question 8 A ball is…

A: A free-body diagram is used to represent the magnitude and direction of forces acting on an object…

Q: A car with its brake applied has an acceleration of -1.2m/s^2. if the initial speed is 10m/s, the…

A: Acceleration of the car,  Initial speed of the car,  Time taken,

Q: A lump of clay of mass 0.21 kg is dropped from a height of 5.5 m. The clay comes to a full stop…

A: mass of clay is m = 0.21 Kg height from which clay was dropped is h = 5.5 m time taken by the clay…

Q: A 5.37 kg toy car moves along an x axis with a velocity given by  v→ = -4.65t3 î m/s, with t in…

A: A 5.37 kg toy car moves along an x axis with a velocity given by  v→ = -4.65t3 î m/s, with t in…

Q: A rope is tied to a 5 kg box on frictionless surface. What is the tension in the rope if the box in…

A: Given, the mass of the box is =m=5 kg acceleration of box=a=4.3 m/s^2 let tension on the rope is T N

Q: A student drops a pebble from the edge of a vertical cliff. The pebble hits the ground 4 s after it…

A:

Q: A race car of mass 756 kg accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. What…

A: Given  Initial speed Vi = 18.5 m/s Final speed Vf = 46.1 m/s Time t = 2.47 sec

Q: A package of mass 56 kg is pushed up a ramp with a horizontal force of 450 N. The length of the ramp…

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Q: A small cactus has fallen out of a plane. As it falls, it eventually reaches a constant velocity of…

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Q: For how long should a force of 135 N be applied to an object of mass 50 kg to change its speed from…

A: Given data: Force (F) = 135 N Mass (m) = 50 kg Initial velocity (Vi) = 25 m/s Final velocity (Vf) =…

Q: When the three blocks in the figure are released from rest, they accelerate with a magnitude of…

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Q: A 1500 kg car is pushed with 3000 N of net force from rest to a final velocity of 28 m/s.  How far…

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Q: A 475-gram ball is traveling horizontally at 12.0 m/s to the left when it is suddenly struck…

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Q: Marlou slides face first on level pavement, uniformly slowing his speed from 2.6 m/s to a stop for…

A: Given data:  Initial velocity (Vi) = 2.6 m/s Final velocity (Vf) = 0 m/s Time (t) = 1.2 s Mass (m) =…

Q: A 100. m E 38 m 20. m B What is the velocity of a car with a mass of 40 kg as it travels along the…

A: Mass of the Car is m = 40 kg Height of point A is HA = 100 m Height of point B is HB = 0 m Height of…

Q: A box weighing 48 N is given a downward velocity of 16 m/s on an inclined plane whose slope is 24/7.…

A: GIven:  Weight of the box = mg = 48N Inital velocity of the block = 16 m/s (downward) Slope of the…

Q: An object of mas 5 kg is sliding with a constant velocity of 10 m/s on a frictionless horizontal…

A: There is no frictional force so there is no resistance in motion of the object.

Q: A 100. m E D 38 m 20. m B What is the velocity of a car with a mass of 40 kg as it travels along the…

A: Given data The mass of the car is m = 40 kg The height at point A is hA = 100 m The height at point…

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: