# Zabedul

### RELATIVITY PROBLEM!?

my answers:

1. 1.2m

2.

a)8.33*10^-6s

b)2000m

c)1200m

are they good?

2 AnswersPhysics3 months ago### STATIC EQUILIBRIUM QUESTION!! ?

A 37.4 kg beam is attached to a wall with a hinge and its far end is supported by a cable such that the angle between the beam and the cable is 90o. If the beam is inclined at an angle of theta = 27.9o with respect to horizontal, what is the magnitude of the horizontal component of the force exerted by the hinge on the beam?

(Answer: 75.9N)

1 AnswerPhysics8 months ago### Mechanics problem: pendulum problem.. Please help ?

I got the first answer right but not the last one, i'm confused.

Answer with explanation please..

:/

1 AnswerMathematics9 months ago### Mechanics problem: momentum conservation ?

I found the first answer to be 1.04 m/s which is correct.

Then, when I tried getting the 2nd answer I got the same result which isn't correct.

Second answer with explanation please?

1 AnswerPhysics9 months ago### Mechanics prob: energy conservation with a swing pls help... ?

My answer for the lowest point works.

But I'm having trouble doing the highest point one..?

Explanation with answer pls :/

2 AnswersMathematics9 months ago### Mechanics: Energy conservation problem with spring! Please help..?

m1 = 1.6 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 45 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.2 kg that hangs vertically. The system starts from rest with the spring unextended.

a) What is the maximum extension of the spring? (*Note: I have tried 0.7m but it doesn't work)

b) What is the speed of block m2 when the extension is 65 cm?

2 AnswersPhysics9 months ago