Recent questions in Classical Mechanics

+15 votes

0 answers

A 5 kg mass slides from rest down a rough incline plane, 30 m long and inclined 30° with the horizontal, and gains a velocity 26 MS^-1. What is the work done against friction?

asked Jan 17, 2023 in Classical Mechanics by bonsai

+117 votes

0 answers

Can you have positive acceleration without having positive velocity (and vice versa)? Why or why not?

asked Jan 17, 2023 in Classical Mechanics by EmberOracle

+5 votes

0 answers

A flywheel rotates with constant angular velocity. Does a point on its rim have a tangential acceleration or a radial acceleration? Are these acceleration constant in magnitude and direction?

asked Jan 17, 2023 in Classical Mechanics by LuminousSculptor (1.7k points)

+6 votes

0 answers

How much time will it take for an object rolling across the floor at 5.28 m/s if it travels a distance of 3.00 m?

asked Jan 17, 2023 in Classical Mechanics by RadiantDreamer

+2 votes

0 answers

If acceleration is not constant, what do we use in the equation?

asked Jan 17, 2023 in Classical Mechanics by Shooglepops

+27 votes

0 answers

How do you calculate the force of wind on an object in still air or moving at constant velocity?

asked Jan 16, 2023 in Classical Mechanics by shokkz

+3 votes

0 answers

How do quantum mechanics and classical mechanics differ in their predictions?

asked Jan 16, 2023 in Classical Mechanics by Hondanation

+21 votes

0 answers

What does constant 1g acceleration mean (as in you have a rocket that’s capable of traveling 22 mph in a minute, 44 mph the next minute, 66 mph)?

asked Jan 16, 2023 in Classical Mechanics by London

+24 votes

0 answers

Is sound affected by gravity? How?

asked Jan 16, 2023 in Classical Mechanics by Facilitiesmanager

+1 vote

0 answers

An object is moving in a circle uniformly. Are the forces acting on it unbalanced, balanced, or uncountable?

asked Jan 16, 2023 in Classical Mechanics by 2mths

+84 votes

0 answers

How can we find the amplitude and period of some SHM when the maximum acceleration and maximum velocity is given?

asked Jan 16, 2023 in Classical Mechanics by Auld Eck

+131 votes

0 answers

How do conservation laws arise in classical mechanics?

asked Jan 16, 2023 in Classical Mechanics by swank (2.5k points)

+655 votes

0 answers

If there is no friction acting on an object, will it be moving at a constant velocity? What will happen to its kinetic energy in that case?

asked Jan 16, 2023 in Classical Mechanics by Mac-Man

+25 votes

0 answers

Why does a changing acceleration not result in a change in direction for velocity (vector quantities)?

asked Jan 16, 2023 in Classical Mechanics by LuminousHorizon

+98 votes

0 answers

How do you calculate instantaneous velocity from a position-time graph or an acceleration-time graph?

asked Jan 16, 2023 in Classical Mechanics by chippyjeff

+20 votes

0 answers

How can you measure an object's state without disturbing it in classical mechanics or quantum mechanics?

asked Jan 16, 2023 in Classical Mechanics by Birches

+11 votes

0 answers

What could cause a car to accelerate when braking?

asked Jan 16, 2023 in Classical Mechanics by barbels1

+7 votes

0 answers

Can Lagrangian mechanics describe all forces and fields?

asked Jan 15, 2023 in Classical Mechanics by AceRimmer

+22 votes

0 answers

Can a force change the velocity of an object moving at constant speed?

asked Jan 15, 2023 in Classical Mechanics by CrystalTwilight

+8 votes

0 answers

An object at the end of a rope has a centripetal acceleration of 145 m/s2 , and the length of the rope is 0.34 m. What is the tangential velocity of the object?

asked Jan 15, 2023 in Classical Mechanics by RadiantCharm

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