Concrete Block Incline acceleration question

[nwmyname]

Homework Statement

A concrete block of mass 25kg is placed on a smooth slope that makes an angle of 30 degrees with the horizontal. Ignoring the effects of air resistance, calculate
a) the acceleration of the block as it slides down (g = 9.81 ms-2)
b) the distance the block moves in 3 seconds

Homework Equations

The Attempt at a Solution

w = mg
w = 25 * 9.81 = 245.25N
Wsin(theta) = 245.25 * sin(30) = 122.625N
122.625N / 25kg = 4.905ms-2?

 

[drvrm]

so, what is the problem you are facing?

 

[nwmyname]

Is it correct? @Verma S.P.

 

[cnh1995]

Is it correct?

Looks correct to me.

 

[drvrm]

Is it correct? @Verma S.P.

whether it is correct or not will decide your 'free body diagram! pl. draw a free body diagram for the forces operating/acting on the block !