Recent questions in Classical Mechanics

+15 votes

0 answers

What is the relationship between energy, velocity, and acceleration?

asked Aug 14, 2022 in Classical Mechanics by LunarHorizon

+24 votes

0 answers

A circular disc is rolling on a horizontal plane. Its total KE is 150J. What is its translational KE?

asked Aug 14, 2022 in Classical Mechanics by EmberWhisper

+24 votes

0 answers

A wheel starting from rest is to accelerate to reach an angular velocity of 30 rad/s in 6 seconds. How many revolutions does it make in the process?

asked Aug 13, 2022 in Classical Mechanics by facequantity (3.5k points)

+77 votes

0 answers

If the velocity of the universe is 70 km/s, what is its acceleration?

asked Aug 13, 2022 in Classical Mechanics by LuminousMystic

+2 votes

0 answers

Tangential velocity is variable. Which acceleration is present in circular motion? Is it uniform or non-uniform?

asked Aug 13, 2022 in Classical Mechanics by Ruds

+263 votes

0 answers

A train has a uniform acceleration of 2.30m/s^2. What distance will he need to travel in order to obtain a velocity of 21.0m/s if he started at rest?

asked Aug 13, 2022 in Classical Mechanics by diysarah

+25 votes

0 answers

Acceleration is the rate of change of velocity with time. Is the acceleration vector always aligned with the velocity vector?

asked Aug 13, 2022 in Classical Mechanics by SolarisSculptor

+27 votes

0 answers

How can the coefficient of static friction between two bodies be calculated?

asked Aug 13, 2022 in Classical Mechanics by votecurriculum

+19 votes

0 answers

A ball is thrown with a velocity of 20m/s at an angle of 45 degrees above the horizontal. What is the ball’s velocity?

asked Aug 12, 2022 in Classical Mechanics by Dave Marques

+5 votes

0 answers

When a photon is created from the Sun, how can it instantly travel at light speed as soon as it exists? That's unfathomable. Momentum has to have a starting point, surely?

asked Aug 12, 2022 in Classical Mechanics by mcrannage01

+5 votes

0 answers

What happens to kinetic energy when an object stops moving?

asked Aug 12, 2022 in Classical Mechanics by andbass

+859 votes

0 answers

Why does classical mechanics break down at the quantum level?

asked Aug 12, 2022 in Classical Mechanics by Gary Bosborn

+263 votes

0 answers

What is the speed of an object at rest and moving with constant velocity?

asked Aug 12, 2022 in Classical Mechanics by MysticOracle

+8 votes

0 answers

A stone is thrown upward with an initial velocity of 20m/s. Air resistance is ignored (g=10m/S). What is its velocity just before reaching the ground?

asked Aug 11, 2022 in Classical Mechanics by AstralHorizon

+15 votes

0 answers

Two subway stops are separated by 1100 m. If a subway train accelerates at 1.2 m/s^2 from rest through the first half of the distance and decelerates at -1.2 m/s^2 through the second half, what are (a) its travel time and (b) its maximum speed?

asked Aug 11, 2022 in Classical Mechanics by clive holland

+27 votes

0 answers

If a girl is running along a straight road with uniform velocity 1.5 m/s, what is her acceleration?

asked Aug 11, 2022 in Classical Mechanics by Wheeler DIYer

+19 votes

0 answers

How does one calculate the final velocity from initial velocity, mass and acceleration values?

asked Aug 10, 2022 in Classical Mechanics by David Summers

+9 votes

0 answers

A system has a mass of 30lb. What is the total force necessary to accelerate it 15 f/s^2 if it is moving on a rough surface having a coefficient of friction to be 0.25?

asked Aug 10, 2022 in Classical Mechanics by CelestialDreamer

+6 votes

0 answers

A tractor of mass 1500 kg accelerates uniformly from rest and attains a velocity of 20 m/s. What is the acceleration, distance covered, and net force acting on the tractor as it accelerates?

asked Aug 10, 2022 in Classical Mechanics by MLrui

+270 votes

0 answers

A body starts from rest and moves with a uniform of 4 m/s2 until it travels a distance of 800 m. What is its final velocity?

asked Aug 10, 2022 in Classical Mechanics by moccasinsconstruct

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Recent questions in Classical Mechanics

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