User 1110101001

27 votes

5 answers

27k views

Why is there an electric field in a wire even though it is a conductor?

asked Dec 28, 2015 at 0:47

14 votes

10 answers

5k views

How do we know that $F = ma$, not $F = k \cdot ma$?

asked Mar 18, 2014 at 17:13

13 votes

5 answers

6k views

Pulley system on a frictionless cart

asked Oct 3, 2015 at 6:43

12 votes

3 answers

15k views

Why is force dependent on acceleration, not velocity?

asked Mar 18, 2014 at 2:09

9 votes

2 answers

11k views

Why are force, momentum, and kinetic energy derivatives of each other [closed]

asked Jul 28, 2015 at 8:28

8 votes

2 answers

2k views

Intuitive explanation for why centripetal acceleration is $\frac{v^2}{r}$ [duplicate]

asked Jun 21, 2015 at 1:00

7 votes

4 answers

18k views

Proof of centripetal acceleration formula ($a_c = v^2/r$) for non-uniform circular motion

asked Jun 23, 2014 at 21:57

6 votes

2 answers

3k views

Is torque still a vector in 2 Dimensions?

asked Aug 2, 2015 at 4:28

5 votes

3 answers

1k views

What changes in the electrons before and after a voltage drop?

asked Jan 17, 2016 at 4:13

5 votes

1 answer

5k views

Electric field at surface of a spherical shell

asked Apr 11, 2016 at 2:15

4 votes

2 answers

2k views

Distribution of surface charges in an electric circuit

asked Jan 4, 2016 at 2:19

4 votes

1 answer

492 views

Question on static electricity & electron transfer

asked Mar 14, 2014 at 5:14

3 votes

1 answer

3k views

Why is a grounded plate needed when applying the method of images?

asked Apr 3, 2016 at 23:03

2 votes

1 answer

2k views

Applying Kirchoff voltage law to a short circuit

asked Jan 2, 2016 at 0:49

2 votes

2 answers

7k views

Half-atwood machine with accelerating pulley

asked Oct 4, 2015 at 20:48

2 votes

3 answers

9k views

Scale on an elevator

asked Jun 20, 2015 at 18:44

2 votes

1 answer

287 views

Why $x=-ct$ line in a spacetime diagram?

asked Sep 7, 2015 at 0:28

2 votes

2 answers

2k views

Conservation of Energy vs Conservation of Momentum in Rotational Dynamics

asked Aug 12, 2015 at 0:46

2 votes

2 answers

5k views

Question on circular motion — car turning on road

asked Jul 7, 2014 at 18:23

1 vote

4 answers

4k views

Why does a string remain taut in circular motion

asked Jul 7, 2014 at 18:31

1 vote

5 answers

2k views

Why does solving $\mu mg = m \frac{v^2}{r}$ give the max possible velocity?

asked Jun 22, 2015 at 7:03

1 vote

1 answer

131 views

What happens when breaking simultaneity leads to different outcomes?

asked Aug 15, 2015 at 2:58

1 vote

1 answer

121 views

Firing counter-propagating photons inside a moving train

asked Aug 15, 2015 at 3:43

1 vote

0 answers

998 views

Induced current in loop

asked Jan 23, 2016 at 20:52

1 vote

1 answer

556 views

Approximating magnetic field at center of current loop by solenoid of 1 turn [duplicate]

asked May 1, 2016 at 0:11

0 votes

1 answer

37 views

Does a charge difference necessitate a potential difference?

asked Apr 25, 2016 at 0:21

0 votes

1 answer

2k views

Space time diagrams and world lines

asked Nov 2, 2015 at 0:07

0 votes

3 answers

3k views

Why is moment of inertia for a point same as a ring

asked Jul 31, 2015 at 6:34

0 votes

1 answer

383 views

Classical Mechanics -- Sign of work done

asked Jun 29, 2015 at 1:23

0 votes

1 answer

2k views

Deriving gravitational potential energy using vectors

asked Jun 30, 2015 at 5:49

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30 Questions

Why is there an electric field in a wire even though it is a conductor?

How do we know that $F = ma$, not $F = k \cdot ma$?

Pulley system on a frictionless cart

Why is force dependent on acceleration, not velocity?

Why are force, momentum, and kinetic energy derivatives of each other [closed]

Intuitive explanation for why centripetal acceleration is $\frac{v^2}{r}$ [duplicate]

Proof of centripetal acceleration formula ($a_c = v^2/r$) for non-uniform circular motion

Is torque still a vector in 2 Dimensions?

What changes in the electrons before and after a voltage drop?

Electric field at surface of a spherical shell

Distribution of surface charges in an electric circuit

Question on static electricity & electron transfer

Why is a grounded plate needed when applying the method of images?

Applying Kirchoff voltage law to a short circuit

Half-atwood machine with accelerating pulley

Scale on an elevator

Why $x=-ct$ line in a spacetime diagram?

Conservation of Energy vs Conservation of Momentum in Rotational Dynamics

Question on circular motion — car turning on road

Why does a string remain taut in circular motion

Why does solving $\mu mg = m \frac{v^2}{r}$ give the max possible velocity?

What happens when breaking simultaneity leads to different outcomes?

Firing counter-propagating photons inside a moving train

Induced current in loop

Approximating magnetic field at center of current loop by solenoid of 1 turn [duplicate]

Does a charge difference necessitate a potential difference?

Space time diagrams and world lines

Why is moment of inertia for a point same as a ring

Classical Mechanics -- Sign of work done

Deriving gravitational potential energy using vectors