A lorry of mass 1350 kg accelerates uniformly from 9 km/h to reach a velocity of 45 km/h in 18 s. Determine (a) the acceleration of the lorry, (b) the uniform force needed to accelerate the lorry.

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Q: 1.A spring with 1 kg mass was initially attached in the ceiling and undeformed. The mass was…

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Q: The elevator car, including passengers, has a mass of 1800 kg. Each floor of the building is…

A: Given information: The mass of the elevator (m) = 1800 kg The distance between each floor (d) = 4 m…

Q: A 70lb child is standing in a 100lb boat that is initially at rest. If the child jumps horizontally…

A: Given data as per question weight of child =70 lb weight of boat =100 lb speed of child =6 ft/s

Q: A car of mass 900 kg is initially travelling at 55 km/h. If the speed increases so that its kinetic…

A: Given:- m=900 kg v1=55km/h=15.2778 m/s K1=175 kJ=175000 J To find:- Final speed, v2

Q: A body of mass 15 kg moving with velocity of 2 m/s is acted upon by a force of 75 N for two seconds.…

A: Given, Mass of the body = m = 15 kg Initial velocity = u = 2 m/s Force applied on body = F = 75 N…

Q: A 2kg body, attached in a 25cm string, is under a uniform circular motion with a velocity of 2m/s.…

A: Given:- m=2 kg r=25 cm =0.25m  v=2 m/s2   To find:- Centripetal force

Q: A 5.25 kg of stone is thrown from a projectile with a force of 245 N from hilltop where the local…

A: In this case , force is given. So, the acceleration will be simple a =F/m Gravitational acceleration…

Q: A car of mass 900 kg is initially travelling at 55 km/h. If the speed increases so that its kinetic…

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Q: A block of mass 1.0kg on a horizontal surface is attached to a horizontal spring of negligible mass…

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Q: A loaded truck weighs 16(10^3)lb and accelerates uniformly on a level road from 15 ft/s to 30 ft/s…

A: Given Data The weight of the truck is: W=16×103 lb The velocity is: 15 ft/s The final velocity is:…

Q: A vehicle with a mass of 1500 kg begins its ascent from rest up a hill with an inclination…

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Q: A cyclist reaches a speed of 9.1 km / h. Determine the kinetic energy produced by his legs (in…

A: Given data: Speed, v= 9.1km/h=9.1×1000/3600 v=2.53m/s Mass, m=82.1 kg

Q: A body of mass 5 kg is acted upon by two perpendicular forces 8 N and 6 N. Given the magnitude and…

A: Given, Mass of the body = m = 5 kg Force F1 = 8 N Force F2 = 6 N   It is given that, both the forces…

Q: An object is thrown from a height of 135 m with an initial velocity of 50 m/s and an angle of 53…

A: Please specify what to calculate.

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Q: 5. A body of mass 10kg moving with a velocity of 1 m/s is acted upon by a force of 50N for two…

A: Given, Mass of the body = m = 10 kg Initial velocity of the body = u = 1 m/s Force acting on the…

Q: etermine the acceleration produced in a body of 20 kg mass when it is acted upon by a force of 200 N

A: Given   Mass, m = 20 kg   Force, F = 200 N Find  Acceleration, a

Q: The constant vertical force ? is applied to the end of the rope that passes over a peg attached to…

A: Given Data The mass of the block is: m=0.2 kg The acceleration is: a=1.5 m/s2 The angle of the…

Q: 1.25 m 1.25 m A ballistic pendulum consists of 7-kg wooden block originally at rest. When a 4-g…

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Q: r = A www k r+l A 1-kg collar has a velocity of 9 m/s when to the right when it is at A. It then…

A: For solution refer below images.

Q: A car, of mass 1400 kg, moves with a steady speed of 20 m s' on a straight rough road 6. with its…

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Q: A body is moved from an origin to new position by a constant force F. If this displacement is…

A: Given : R⇀=3i+3j (m)F⇀=20i+20j (N)

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Q: The final velocity of a body , initially at rest and acted upon by a force F = 5 N, and mass m = 1…

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Q: 33. A 200kg box is laid down to a rough flat surface whose coefficient of friction is 0.39.…

A: GIVEN DATA Mass m=200kg Coeffcient of friction = 0.39 Acceleration a=2.5m/s2

Q: A car A travelling at the speed of 25 km/h while a car B travelling at the speed of 70 km/h as shown…

A: RELATIVE VELOCITY  The vector distinction between the speeds of two bodies : the speed of a body…

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.