Question

A skier slides down a slope with 12 degrees below horizontal. Ignoring friction and air resistance, the skier's acceleration is most nearly: a) 0 b) 2m/s2 c) 5m/s2 d) 8m/s2 e) 10m/s2

Answer 1

Answer:

The acceleration is zero (0)

Explanation:

The fact that the skier is moving and does not receive any kind of force that reduces or increases its speed allows us to understand that it is moving at a constant velocity and when anybody moves at constant velocity the acceleration is zero.

this is explained and understood mathematically by the interpretation of newton's second law which plasma in the following equation:

$F=m*a\\where:\\\\F = sum of forces [N]\\m = mass of the body [kg]\\a = acceleration of the body [m/s^{2}]$

If there are no forces acting over the body:

$0= m* a\\a=\frac{0}{m} \\a=0$