Mass going up an inclined plane with initial velocity Vo

[herardo]

1. Vo
Mass=m

2.So we tried two ways of doing this, one is by taking the y component of the i itial velocity and using that and the other by using the component of its weight parallel to the initial velocity.They give conflicting answers.

For the left one it turns out to be t=Vosinθ/g

But for the right its t=Vo/gsinθ

mVo/gsinθ
Any thoughts?

 

[Orodruin]

You have not actually shown your ways translated into maths or how you translate your sketches to an equation to solve. You also have not stated what the actual question is.

 

[herardo]

You have not actually shown your ways translated into maths or how you translate your sketches to an equation to solve. You also have not stated what the actual question is.

The question was how much time will it take for the box to stop up the incline

 

[Orodruin]

You still have not shown your actual attempt. Please note that this is required by forum rules.

 

[herardo]

You still have not shown your actual attempt. Please note that this is required by forum rules.

Here

 

[herardo]

HereView attachment 229970

The other methof

 

[Orodruin]

Please read the homework guidelines.

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Also, the weight is not the only force that acts on the mass in the vertical direction.

 

[PhysicsBoi1908]

The force mg is not going to act on the object as depicted by you in the first case, the whole mg will not cause retardation in the object. Acceleration takes place because of a force, here, you have not correctly determined the force which will act on the object.