A father and his young daughter are ice skating. They faceeach other at rest and push each other, moving in oppositedirections. Which one has the greater final speed? Explain.

Q: An Atwood machine has suspended masses of 0.25 and 0.20 kg. Under ideal conditions, what…

A:

Q: In the Atwood machine shown below, m1 = 2.00-kg and m2 = 5.60-kg. The masses of the pulley and…

A: Given,

Q: A panda of mass 45 kg is climbing up a vine that can bear a maximum tension of 640 N. Identify in…

A: Given, m = 45 kg g = 10 m/s ( a ) When he accelerates up at 5 m/s2 : T = m (g + a)…

Q: 2. A 80 kg spacewalking astronaut pushes off a 640 kg satellite, exerting a 100 N force for the 0.50…

A:

Q: If the falling body had been given an initial downward push instead of being only released would the…

A: Firstly we have to understand some basic terminology for better understanding of the above problem.…

Q: 77. A locomotive is pushing a train at a constant velocity of 3 mis. How does the force exerted by…

A: We use Newton's Laws to find the answer.

Q: *82. GO To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist…

A: Given, mass of man, m = 72.0-kg Tension force, T = 358 N Upward acceleration of man, a =?

Q: A 200 kg coal bag is lifted by a crane from a Coal-mine with an acceleration of 5 m/s^2. The force…

A: According to the Newton's second law  Net force = mass x acceleration

Q: 2G G

A:

Q: As a rocket ascends higher into the air, its acceleration increases *even if* the force on it…

A: Given statement : The acceleration of a rocket increases as it ascends higher into the air , even if…

Q: 16. An object in projectile motion have the following properties. (Neglect dissipative forces) * 1.…

A:

Q: 4 kg 1 kg 4 m -yer When objects with a mass of 1 kg and 4 kg are released in a frictionless plane,…

A: Let's draw the FBD.

Q: Can you give a practical example of how a body can still accelerate even without changing its speed?…

A: Acceleration is the rate of change of velocity. That is a body accelerates when there is a change in…

Q: Describe the motion of a person not wearing a seat belt if the car stops suddenly--- Select one: O…

A: Due to moment of inertia , The car will stop and the parson will keep moving forward . So we use a…

Q: Which of the following scenarios demonstrates inertia? A car hits a patch of ice and slides in the…

A: inertia is the property of an object to maintain it's state of motion.

Q: 15. Why does an object in motion remain in motion, while an object at rest, rem O The object is…

A:

Q: Can a body have a velocity without acceleration? Explain your answer by giving examples.

A:

Q: A girl has a mass of 55 kg. Using g = 9.8 Nkg-, calculate her weight. КА) 5.6 N (В) 45.2 N (C) 64.8…

A: m= 55kg g= 9.8 N/kg weight= W

Q: A 200 kg coal bag is lifted by a crane from a Coal-mine with an acceleration of 5 m/s^2. The force…

A:

Q: Can you cite an example in which the acceleration of a body is opposite in direction to its…

A: Velocity of a body is defined as rate of change of displacement with time. And acceleration of a…

Q: Someone holds the block on the table at rest. Once he releases the block, the block may accelerate…

A:

Q: 68. A rocket of mass 4.5 X 10 kg is accelerating straight up. Its engines produce an upward thrust…

A: According to the Newton's second law , the vertical net acceleration of the rocket is calculated by…

Q: At a time when mining asteroids has become feasible, astronauts have connected a line between their…

A:

Q: 83. Two ice skaters, one with a mass of 57 kg and the Th other with a mass of 75 kg, stand facing…

A: According to Newton's third law Every action has equal and opposite reaction.

Q: Describe the motion of a person not wearing a seat belt if the car stops suddenly-- Select one: O a.…

A: Given situation: A person is not wearing seat belt traveling in a car and suddenly car stops. We…

Q: What force will change the velocity of a body of mass 1000 kg form 120km/h to 130 km/h in 1minute А.…

A:

Q: 8. The masses of the Atwood's machine are M = 9.4 kg and m 1.4 kg, respectively. The acceleration…

A:

Q: 10. Three masses at rest m1= 1.0kg, m2 = 2.0kg and m3 = 3.0kg are given equal and constant forces,…

A: Given, Three masses at rest are given an equal and constant force. The masses are: m1=1 kgm2=2…

Q: Two people, one with mass 50kg and one with mass 60 kg are sitting opposite each other in rolling…

A:

Q: To ice skaters of equal mass push against one another and afterwords move in opposite directions…

A: This  problem can be solved by concept of Newtons third law. Which states that for every action…

Q: Two blocks are suspended from opposite ends of a light rope that passes over a light, frictionless…

A: Given: The distance covered is 5.00 m. The time taken is 2.00 s. The tension is 16.0 N.

Q: Two masses of 5 kg and 3 kg are suspended with help of massless inextensible strings as shown in…

A:

Q: 59. 59. A block of mass 4m can move without friction on a horizontal table. This block is attached…

A:

Q: How much force is needed to accelerate a 66 kg Skier at im/s^2? O 6.6 N O 66 N O 100 N O 10 N

A: Given that, Mass of the Skier, m = 66 kg Acceleration of the skier, a = 1 m/s2 We need to find the…

Q: A small sports car collides head-on with a massive truck. The greater impact force (in magnitude)…

A: Sports car is small and truck is massive that means mass of car is small then truck. .

Q: What is a practical example of how a body can still accelerate even without changing its speed?

A: Concept :- When a body of mass m moves in a circular path of radius r with uniform speed v then the…

Q: Two masses are suspended by a frictionless cord (as shown in the figure). Where m1 = 30 kg, and m2 =…

A: m1= 30 kg  m2 = 28 kg

Q: "Assuming no fiction, what is the acceleration of the system of the following figure (in m/s2)?" 4…

A:

Q: 7 What force is required to slow a 1450-kg car traveling 115 km/h to 45.0 km/h within 3.00 s? How…

A: I solve this question correctly without any mistake the option of this question is incorrect. The…

Q: Why would a truck take longer to accelerate when the driver hits the gas if it were loaded with…

A: From Newton's second laws, Force = mass × acceleration  So, for a given force , greater the mass ,…

Q: 5. If the captain instead wants the spacecraft to move in the same direction, but with its speed…

A: The captain wants to move in the same direction but with decreasing speed at a constant rate, it…

Q: A 6.00-kg block and an 8.00-kg block are connected as shown. When released, the 6.00-kg block…

A:

Q: Why are cars designed to crumple in front and back for safety? Why not for side collisions and…

A: The cars are designed to crumple in front and back for safety. The crumple zones redistributes force…

Q: 10. If two objects are dropped in an environment without air resistance, what will occur? Both of…

A: Given  two objects of mass m1 and m2  let m1 is lighter than m2 Initial velocity of both object's is…

Q: A taut massless string connects two boxes as shown in the figure.  The boxes are placed on an…

A: Mass of both the blocks are m1=5 kg and m2=1.4 kg Angle of inclination of the plane (θ)=33o…

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: