A ladder 5 meter long leans on a wall and makes an angle of 30° with the horizontal. Find the vertical height from the top to the ground. 2.5 meter 1.5 meter 2.0 meter 2.75 meter

Q: A 0.1000-kg marble is fired by a boy from a slingshot at point A, at a height of 1.500 m from the…

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Q: Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0 m apart on a horizontal…

A: Given information:Mass of the spheres (M) = 100 kgThe radius of the sphere (R) = 0.1 mThe distance…

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A: Given: The figure of an inclined platform with circular rail at the bottom is given. h is the height…

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Q: A satellite revolves around the earth in a circular orbit. What is the work done by the satellite?…

A: Given: satellite revolving around the earth

Q: A rocketship, of mass 1.00 x 10¹ kg is located 1.00 x 10" from the centre of the Earth. (a)…

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Q: An object of mass m r = ro 1+cos 0 moves in a parabolic trajectory given by (ro = 12). mk a)…

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Q: 5. What is the Potential Energy of a 0.5 kg solid disk raised to the top of the Empire State…

A: Given: Mass , m = 0.5 kg Height, h = 380 m

Q: Consider a spacecraft in an elliptical orbit around the earth. At the low point, or perigee, of its…

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Q: A small mass m is launched from the origin (0, 0) with speed vo in direction x and slides without…

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Q: A satelite is in geostationary orbit. How much energy is required to move it to a circular orbit…

A: Given  Period of new orbit T' = 8 days Known Values Geo stationary orbit radius r = 4.2 x 107 m the…

Q: A bus uses the kinetic energy of the flywheel, which is supplied by the electricity at stations. How…

A: Given data:

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Q: In the figure below an object of mass m starts from rest on a roller coaster with negligible…

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Q: Assume that the answer is between 90 and 270 degrees.What is the arctangent of -8.144?

A: We know that value of tan in third quadrant is positive. hence the angle can not lie in the third…

Q: 40. What is the change in gravitational potential energy of a 65.5 kg astronaut lifted from Earth's…

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Q: 4. A very large cat sits at the center of a swing. Two scales are attached to the ropes. One scale…

A: This question can be solved using the concept of mechanical equilibrium. According to which the sum…

Q: Derive an expression for the work required to move an Earth satellite of mass m from a circular…

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Q: 5. Calculate the centrifugal acceleration (xg, i.e times the force of gravity) experienced by a…

A: Given data-  A particle which is located a distance from the Axis of rotation r=12.5 cm  Rotor is…

Q: (a) Which component of the horizontal axis wind turbine can be considered as the brain of the…

A: (a) The brain of a wind turbine is called the nacelle. A nacelle is a housing that contains all of…

Q: A gas-powered model airplane has a mass of 2.50 kilograms. A student exerts a force on a cord to…

A: Given :- mass of airplane = m0 = 2.50 kgSpeed of airplane = v = 18.0 m/sRadius of circular path = r=…

Q: Show all work. If the same car was going through the lowermost point at a 25 m circular depression…

A: Here in the question, we have given that the car of 50 kg moving at a steady speed v = 20 m/s  and…

Q: Consider a molecular motor that has an efficiency of 51%. Find the maximum force the motor can…

A: According to question--- Given data-- efficiency = 51% . Size = 5nm. Consumed energy in each step…

Q: Use the definition of scalar product, · = ab cos ?, and the fact that · = axbx + ayby + azbz to…

A: The scalar product of two vectors is defined as the product of the magnitudes of both the vectors…

Q: Suppose you use an ideal pulley of the type shown in (see attached image) to support a car engine of…

A: a)The relation between tension and weight of load is,

Q: A cart of mass m= 303 kg is going around a circular loop-the-loop. There is no motor. The cart moves…

A: Given, Radius = 18 m mass of cart = 303 kg Normal force at top = 1328 N

Q: How much work is exerted on the block by the gravitational force as it travels from P to Q

A: Given mass (m) of the block= 0.50kg radius of the loop (R)= 12cm=0.12m the block is released from…

Q: A car rounds a freeway exit turn of radius 40m at constant speed of 20m/s. The turn goes 3/4 around…

A: Constant speed of car  = 20 m/s  Radius of circular track = 40 m

Q: A planet orbits its star in an elliptical orbit. Which of these quantities do not change as the…

A: If a planet orbits its star in an elliptical orbit, then which of the quantities do not change.…

Q: A Fall on the Moon. You and your team are stationed at an earth-based mission control facility and…

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Q: The concept of escape velocity can be best described as: (A) The initial speed required so that an…

A: The escape velocity of a planet is the velocity required for the object to escape from the…

Q: Earth mass = M Mech 3. A satellite of mass m is in an elliptical orbit around the Earth, which has…

A: The mass of the satellite is given as, m, The mass of the Earth is given as, Me, The radius of the…

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.