physics paper 1,2 ........can we discuus da papper nw?

[17194]

yes, it can.

Yeah I was a bit skeptical about that. I think I only got one question wrong. I calculated the resistance correctly then thought it wrong and changed it.

 

[pakisatan123]

15N

i wrote fr fiction force opposing body in motion and what u wrote why acceleration decreases as he moves along level road

 

[Fallen316]

i wrote fr fiction force opposing body in motion and what u wrote why acceleration decreases as he moves along level road

air resistance increases , is greater than forward force.
unbalanced forces , so , acceleration decreases

 

[asd]

round the iron core.
just didn't write the poles.

There was no need to write the poles, they just said to draw mg fields .

 

[pakisatan123]

air resistance increases , is greater than forward force.
unbalanced forces , so , acceleration decreases

i wrote friction increases between tyres and road

 

[pakisatan123]

i wrote friction increases between tyres and road

is it right

 

[Fallen316]

is it right

i dont know mate. Just hope for the best
Pray to ALLAH for a good grade.
now if you'll excuse me, i've got to prepare for chemistry

 

[pakisatan123]

any one gt this ans fr current part 0.0254 in which charge and time was given

 

[asd]

air resistance increases , is greater than forward force.
unbalanced forces , so , acceleration decreases

I think that air resistance did not get greater than the forward force, it just increased to near the forward force decreasing the resultant force, hence the acceleration too.

 

[Fallen316]

I think that air resistance did not get greater than the forward force, it just increased to near the forward force decreasing the resultant force, hence the acceleration too.

lol
even if it nears the forward norce , it will not decelerate since it has not overcome the force.
it has to be greater then the driving force to make it decelerate.

 

[asd]

lol
even if it nears the forward norce , it will not decelerate since it has not overcome the force.
it has to be greater then the driving force to make it decelerate.

It did not said decelerate
It said acceleration decreased, which was obviously going to be that the air resistance force increased to the magnitude of driving force, decreasing the resultant force.

 

[asd]

It did not said decelerate
It said acceleration decreased, which was obviously going to be that the air resistance force increased to the magnitude of driving force, decreasing the resultant force.

say * D:

 

[Fallen316]

It did not said decelerate
It said acceleration decreased, which was obviously going to be that the air resistance force increased to the magnitude of driving force, decreasing the resultant force.

i dont know mate. Just hope for the best
Pray to ALLAH for a good grade.
now if you'll excuse me, i've got to prepare for chemistry

 

[beeloooo]

Q 9 part d you did it wrong, when switch will be opened, the deflection would be on the left ! (momentarily)

well why would it btw ?? it should return to its original position at 0

 

[Mayedah]

Why was the answer to the hill one B ?

 

[daredevil]

Why was the answer to the hill one B ?

first of all keep in mind that the graph was a speed time graph and it wasn't the height of the hill as it looked confusing bcuz of its hilly shape and people naturally felt the answe rwill be A or C or D as it said bottom of the hill.
then keep following that he is at the bottom of the first hill.... all the gravitaional potential energy is converted to kinetic energy. speed is directly propotional to kinetic energy so here it has the highest speed and the highest speed was B. hope it explained

 

[Mayedah]

first of all keep in mind that the graph was a speed time graph and it wasn't the height of the hill as it looked confusing bcuz of its hilly shape and people naturally felt the answe rwill be A or C or D as it said bottom of the hill.
then keep following that he is at the bottom of the first hill.... all the gravitaional potential energy is converted to kinetic energy. speed is directly propotional to kinetic energy so here it has the highest speed and the highest speed was B. hope it explained

Thnx
I got it wrong :/

 

[Muhammad Asadullah]

i attempted three questions in sec. B ... do they check all three.?

 

[Mayedah]

i attempted three questions in sec. B ... do they check all three.?

No they only check first two !

 

[Mayedah]

first of all keep in mind that the graph was a speed time graph and it wasn't the height of the hill as it looked confusing bcuz of its hilly shape and people naturally felt the answe rwill be A or C or D as it said bottom of the hill.
then keep following that he is at the bottom of the first hill.... all the gravitaional potential energy is converted to kinetic energy. speed is directly propotional to kinetic energy so here it has the highest speed and the highest speed was B. hope it explained

Wht was the answer to the centre of mass one ?