Question

A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.40 m. The vertical distance from the top of the incline to the bottom is 1.09 m. If g

Answer 1

Complete Question

A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.40 m. The vertical distance from the top of the incline to the bottom is 1.09 m. If $g=9.8 \ m/s^2$ , what is the acceleration of the block as it slides down the incline plane

Answer:

The acceleration is  $a = 3.142 m/s^2$

Explanation:

From the question we  are told that

The distance from top to bottom of the inclined plane measured along the incline  is $d = 3.40 \ m$

The distance from top to bottom of the inclined plane  measured along the vertical axis is  

         $D = 1.90 \ m$

According to the SOHCAHTOA rule

        $sin \theta = \frac{D}{d}$

=>      $\theta = sin ^{-1} [\frac{D}{d} ]$

substituting values

=>         $\theta = sin ^{-1} [\frac{1.09}{3.40} ]$

            $\theta = 18.699^o$T

The acceleration of a block on a frictionless inclined plane is mathematically represented as

            $a = gsin \theta$

substituting values

           $a = 9.8 * sin(18.699)$

         $a = 3.142 m/s^2$