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# Physics help watch

1. A block of mass 2kg is on a smooth slope of 30 degrees. If it slides from rest at X, find its speed at Y after moving 10m down the slope...

2. Draw a triangle of forces on the object and begin to resolve the vectors.

Spoiler:
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You can resolve the downward force on the slope as N, hence the force parallel to the slope is N. Hence N to 4 s.f.

Since N parallel to the slope, m/s2 to 4 s.f. Thus, using the SUVAT equation :

which is 10m/s to 1 s.f. (as 1 s.f. is the lowest given in the question).

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