A force of 30 N is applied to an object that causes it to accelerate at 20 m/s2. What is the mass of the object ?

It was crowded with sewer like smells. bad sewer systems

The answer is periosteum

F  you double the  force, you double the acceleration, but  if  you double the  mass, you velocity. all bodies accelerate at the  same  rate regardless of size or  mass.

The answer is  the potential energy of the bob at position b is 1.47 joules.if the maximum height of the bob is 0.45 meters when it swings back,1.323   joules of energy was transformed to thermal energy.hope this