A 1000 kg car and a 2000 kg car are traveling on an icy road, meaning there is low friction between the car's tires and the road; which one of the following options is correct: (assume other variables are constant) * O the 1000 kg car will accelerate slower O the 2000 kg car will accelerate slower O the mass of the car does not affect motion the 2000 kg car will not move

Q: power mower does 8 x 104 J of work in 0.4 h. What power does it use

A:

Q: The quantity F•v is ______? a.kinetic energy b.potential energy c.power d.work done

A:

Q: A 75 kg man pushes off from the 86kg block on ice and slides away at a speed of 4 m/s What is the…

A: Conservation of momentum: AS per the conservation of momentum in an isolated system the total…

Q: 81. Work is a transfer of * a. energy O b. force C. mass O d. motion

A:

Q: Kinetic energy is equal to: A) 1/2 mv2 B) mgh C) mv D) Ma

A: Kinetic Energy is the energy possessed by the body by virtue of its motion. It is a scalar quantity,…

Q: 1 Newton of force is applied to a stone to move 100 cm. Calculate the work done.

A: Given, Force = 1 N Displacement = 100 cm = 1 m Work done = ?

Q: 33. Name the appropriate unit for each quantity. iii) Momentum iv) Mechanical Energy

A: We know that Momentum= mass × velocity P = m v    Mechanical energy = workdone = force ×…

Q: What is work

A: Work is said to be done when a force applied to an object moves that object. Work is defined as a…

Q: A 1000kg car traveling at 35 m/s takes 9 m to stop under full braking The same car under similar…

A: Given data *The mass of the car is m = 1000 kg *The initial speed of the car is u = 35 m/s *The…

Q: A pitching machine uses 122J of energy to throw a baseball with a mass of 0.145kg at a speed of…

A: The given data are: Win=122 Jm=0.145 kgv==36 m/st=0.4 s Here, Win denotes the input energy, m…

Q: Kinetic Energy: (a) What is the kinetic energy of a 23 kg dog that is running at a speed of 8 m/s?

A: Given: mass,m= 23 kg  velocity,v = 8 m/s

Q: kWh = ___________ a) 3.6 × 106 J b) 3.6 × 105 J c) 0.36 × 106 J d) 0.36 × 105 J

A: A

Q: 1. What amount of work is done when a 5 newton object is moved a distance of 10 meters?

A: Given data:   Force (F) = 5 N Distance (d) = 10 m Required: Work done (W)

Q: A 2063 KG car accelerates from rest to a velocity of 25M/S in 13 seconds. The power of the engine…

A: Given:- The mass of the car is m = 2063 kg  The car starts from rest and achieves a velocity of v =…

Q: how much work is required to increase a 1200 kg car's speed from 35 mph to 65 mph? how many J

A: The car's mass is, m=1200 kg The initial speed of a car is, u=35 mph=35×0.447 m/s=15.645 m/s The…

Q: A 75 kg man pushes off from the 86kg block on ice and slides away at a speed of 4 m/s What is the…

A:

Q: 8. What is the kinetic energy of a 1200 kg car travelling 90 km/h?

A: Given: The mass of the car is 1200 kg. The speed of the car is 90 km/h.

Q: the KE of a 1 000 kg . Calculate car travelling at 60 km/h.

A: Given data:  Mass (m) = 1000 kg Velocity (v) = 60 km/h Required: Kinetic Energy (KE)

Q: A ball of mass 2 kg starts from rest. Find its final Kf for each example. It is accelerated at 5…

A: Given: The mass of a ball is m=2 kg. The initial velocity of the ball is u=0 m/s. Case 1: Given:…

Q: What is the kinetic energy of an 8kg object moving at 7 m/s?

A: Given data:  Mass (m) = 8 kg Velocity (v) = 7 m/s Required: The kinetic energy (KE)

Q: A 157.0 g baseball has a velocity of 31.8 m/s. What is its kinetic energy in J? KE J

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Q: A point charge with a charge q₁ = 2.10 μC is held stationary at the origin. A second point charge…

A:

Q: A 5500 W lathe can move an iron block at a constant speed of 4.3 m/s. What is the force applied to…

A: Given  Power (P)=5500 w speed(v) =4.3 ms-1 Required force(F)=?

Q: If the product of velocity and "k" is work with units kg.m2s-2, then the dimensions of "k" are : A.…

A: The expression for work as per given condition is, W=k×v Here, W denotes work done (W) and v denotes…

Q: Q1. 1 Jis the energy required to doof work. O 1N O 1J O 9.8 N O 98 J

A: From Energy conservation:   Work Done = Potential Energy

Q: How much work is done by a machine to lift 750 kg of bricks to a height of 8.2 m?

A: Work done = gain in the potential energy by the bricks = m×g×h Here, m= 750 kg            g= 10 m/s2…

Q: A car goes down a frictionless 100 incline for 1 m. What is it’s final velocity?

A: Given Data : The distance travelled by car is given as s = 1m. The angle of inclination of the plane…

Q: A car is traveling at a velocity of 10 m/s and it has a mass of 250 kg. Compute it's kinetic energy

A: Given: The velocity (v) of the car is 10 m/s. The mass (m) of the car is 250 Kg. Introduction: The…

Q: A 1,367 kg car with 234 horsepower is driving up a 202.7 meters mountain. How long (in seconds) will…

A: Given data:  Mass (m) = 1367 kg Power (P) = 234 hp Height (h) = 202.7 m Required: Time (t) taken to…

Q: What is the energy required to accelerate a 1655 kg car from rest to 25 m/s?

A: According to work energy theorem, the net work done on an object is equal to change in kinetic…

Q: A 73 kg man pushes off from the 86kg block on ice and slides away at a speed of 2 m/s What is the…

A: Given data:  Mass of man (m1) = 73 kg Mass of block (m2) = 86 kg Speed of man (V1) = 2 m/s Required:…

Q: 4. An object with mass 23kg falls from 249m and hits the ground. What is its PE before it begins to…

A: Given data: The mass of object is m=23 kg. Height from ground is h=249 m.

Q: How LONG DOES IT TAKE for a 75 Watt light bulb to burn out if it can 4 p perform 600,0dO J of work…

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Q: QUESTION 7 This problem is concerned with the same situation as the previous problem. A piece of…

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Q: 1kWh = ?   A) 3.6 x 105 J B) 3.6 x 106 J C) 3.6 x 10-5 J D) 3.6 x 10-6 J

A: 1 kWh =  1kilo -Watt- hour             = 1 x 103 Watt-hour => 1kWh = 103×60×60 watt-sec…

Q: 35 mph in horsepower  35mph in watts

A: mph is the units of speed which is miles per hour and horsepower is the unit of power  also watt is…

Q: Which of the following is NOT an energy unit? (choose one best) a. watt x sec b. watts c. joules

A:

Q: Power: A kilowatt-hour is equivalent to 1000 W. 3600 J 3,600, 000 j/ s . 3, 600, 000 J 3600 j/s

A: Answer:- 3,600,000 J  A kilowatt- hour = 3,600,000 J    Because    1kilowatt - hour = 1 kilowatt × 1…

Q: 1 kW = ? A) 1000 W B) 10 W C) 100 W D) 10000 W

A: Watt is the unit of power. The power is defined as the work done in a unit time interval. The…

Q: How much work was done

A: we know work done W = power * time  W = P * t

Q: 1) This PV diagram shows the processes for n = 4.5 moles of a monatomic gas. 600 A Path A → B is…

A: Given: n = 4.5 moles , monoatomic gas, PV diagram  We have to find:

Q: Dimitris car has a fuel efficiency of 21 miles per gallon. His tank is full with 12 gallons of gas.…

A: The gas-filled in the car, V(volume) = 12 Gallons Fuel efficiency, η = 21 miles per Gallon   Total…

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: