Compression and rearfraction
Answer:
A) The disk arrives first
Explanation:
The disk arrives first, and the reason behind this is that the disk posses smaller moment of inertia, picking up quickly of angular speed of an object for a particular torgue can be determined by ts moment of inertia . So small quantity of energy will be used up as rotational energy, and with the rotational energy the disk will move faster that the hoop.
Answer:
aluminum and steel are both magnetics
Answer:
200
Explanation:
If an object has Pi (initial momentum) of 20 kgm/s ends with a Pf (final momentum)
of 40 kgm/s. How long would a 5N force need to act on it? *
Answer:
The correct answer is A.
Objects in free fall accelerate due to <u>gravity</u>.
Explanation:
Momentum can help an object to keep its state of motion at a constant velocity when no external force is applied. It can never accelerate the object.
According to the laws of motion, we know that acceleration is produced in a body only when a Force is applied in the direction of motion of body.
During a free fall, only the force of gravity is acting on an object and that too in the direction of its motion. Hence, the acceleration produced in a free falling object is due to gravity.
