Recent content by sweet-buds

so u mean if the forces 5N acted towards left and 3N towards right, it would move left. In this case waht would be Newtons 2nd law equation? I would say since 5N>3N, So left direction would be positive and so 2N=m*a or 2N= m*(-a) as the body tend to move left. I would go with the former equation.

sorry, I still didnt get you. could explain it more elaborately.

Homework Statement let's say we have 2 blocks as shown. []->T1----T1-<--[] both blocks are joined by a common rope having a tension T.lets say when the blocks are pulled apart, the tension acts in the direction on the blocks as shown in figure as they try to prevent the sting from...

what do u mean by your last sentence "positive is in direction of motion" is it the acceleration. suppose ----->[]<--------- the forces act on the box(mass m) as shown 3N 5N what would be the equation? would it be :-5N+ 3N=-2N(NET FORCE) So, -2N= m*a...

anyone?PLs reply

if T points up and mg down, and if the block moves down then mg>T so can the equation be mg-T= m*(-a) as acceleartion is -ve as it is a vector.

urgent:Newton2nd law Homework Statement i got this problem in Haliday. There are 2 blocks connected by a rope. onr of the blocks is a sliding one and the other is a hanging one and the rope passes over a pulley and the pulley is connected at the edge of the table/surface. The sliding block...

help me urgent: Newton's 2nd law You are also correct when you say "he force is in negative horizontal or vertical direction, arent we suppose to assume the direction of acceleration also negative as acceleration is vector." i got this problem in Haliday. There are 2 blocks connected by a...

how is that possible? I would say since the 5N force is greater so the F_net=3-5 =-2 N, a force that act towards left. Now, -2=m*(-a)=>-2=2*(-a)=>1=a, as I pressume the body will move towards left due to net -2 N force and since acceleration is towards left, I have used a - ve sign before a. My...

Homework Statement F=ma can be written as F=ma(along x, y or z-direction, ) when applying this equation along say horizontal x direction, the direction of acceleration needs to be taken as it is a vector. i mean say 2 forces of 5 N and 3 N are applied on a 2 kg body that moves towards...

Homework Statement what happens to tension of a rope(connected linearly to 2 bodies) if one of the bodies move closer to slacken the rope? does the tension act on the body in opposite direction to push it? I am confused because as far as I know tension cannot push a body or rope? Based on...

in the rope situation, the tension makes sure that the both bodies move with same acceleration in order to prevent the string break. but let's say they have same acceleration, why does the initial question asks them to be rank in order of accelerations? i guess the question can't be wrong bcoz...

Homework Statement A vertical force F is applied to a block of mass m that lies on a floor. what happens to the magnitude of the normal force N on the block from the floor as magnitude F is increased from zero if force F is a)downward b)upward Homework Equations Let m be the mass of...

But don't you think that the second example/question is wrong in the sense why would we assume the 2 blocks to have same acceleration. If the 2 blocks had been joined by a massless inextensible cord/rope it would have a common acceleration but on the other hand let's sayif the 2 blocks had a...

Tension is the force exerted by a rope on the body, when a rope(massless) connects 2 bodies on a plane, like 2 blocks , which side is direction of tension? Tension always pulls a body or rope, never pushes the body or rope. also, r bodies conected with a massless cord assumed to have...