Explanation:
A weight at the elbow exerts a downward force on the elbow.
A weight at the hand, a perpendicular distance from the elbow, exerts a downward force <em>and</em> a bending moment.
So hanging a bag from the crook of your elbow puts less stress on your arm.
Direction. Velocity is a vector that describes both speed and direction, while speed is a scalar that describes only speed regardless of direction.
Answer:
With the decreasing object mass, the acceleration will also decrease.
Explanation:
Newton's second law of motion infers the relation between force F, acceleration a and mass m of a body. It is expressed as:
F = ma
When force is constant, we get m α 1/a, that is mass is inversely proportional to the acceleration of the body.
Hence when object's mass decreases, the acceleration will increase. and vice versa
