An apple weighs 2 KG. The earth exerts a force of 20 Newtons on the apple. How fast does the apple fall ? ( 1 Newton = kg/m/s2)
F=ma
a= F/m=10m/s^2
To calculate the speed at which the apple falls, we can use the formula for weight, which states that weight is equal to mass multiplied by acceleration due to gravity. Using this formula, we can rearrange it to solve for acceleration due to gravity:
Weight = mass * acceleration due to gravity
Since weight is given as 20 Newtons and the mass is given as 2 kg:
20 N = 2 kg * acceleration due to gravity
Now, we can solve for the acceleration due to gravity:
acceleration due to gravity = 20 N / 2 kg
acceleration due to gravity = 10 m/s^2
Therefore, the apple falls with an acceleration of 10 m/s^2.