how do you find m/sec2? thats meters per second squared...?

Question

Problem: How much work is done when a porcelain vase with a mass of 2.5 kg is lifted from the floor onto a table 1.25 meters high?

Answer 1

Velocity divided by time. M/sec^2 = Acceleration.

We need more information to help you with a specific problem.


The acceleration due to gravity at the surface of the Earth is 9.8 m/sec^2 if that helps.


Edit: Potential energy = HeightxMass.

Work (in joules) = (m^2* kg)/s^2.

Multiply 9.8m/s^2 * your height (distance in meters) * your mass (in kg)

Answer 2

velocity divided by time?

distance divided by time^2 ?

Do you have a specific problem you need help with?
--------------------------------------

How much work is done when a porcelain vase with a mass of 2.5 kg is lifted from the floor onto a table 1.25 meters high?

Work = Force x distance
Force = mass x acceleration

Use acceleration due to gravity = 9.8 m/s^2 by definition

W = (mass)(acceleration)(distance)
= (2.5 kg) (9.8 m/s^2) (1.25 m)
= 30.625 (kg-m^2)/s^2

= 30.625 Newtons

Hope that helps ;)

Answer 3

I think you have lost gravity !

Work done is distance x force applied
that is distance x mass x acceleration

The distance is given 1.25m
as is the mass 2.5kg
The value that you are missing is gravity 9.8m/s/s


so the answer becomes 1.25 x 2.5 x 9.8 = 30.625Joules

Answer 4

W= Fd and F=ma, so W = mad. Got it yet?

Answer 5

I didn't even know it was lost!!