Explanation:
The term 'collision' refers to the interaction between two objects. There are two distinct types of collisions: elastic and inelastic.
In this scenario, two identical carts are heading towards each other at the same speed, resulting in a collision. In an inelastic collision, the momentum is conserved before and after the incident, but kinetic energy is lost.
After the event, both objects combine and move together at a single velocity.
The graph representing a perfectly inelastic collision is attached, illustrating that both carts move together at the same speed afterward.
Answer:
31.4 mm²
Explanation:
The ability of a telescope or eye to gather light can be expressed by the formula,
where d signifies the diameter of the pupil.
In bright daylight, the usual size of the pupil is 3 mm.
Conversely, in darkness, the diameter typically enlarges to 7 mm.
This indicates an increase in light-gathering capacity.
Thus, the amount of light the eye can capture is 31.4 mm².
As the parachutist is descending at a steady rate
we can conclude that
Acceleration indicates the change in velocity
given the constant velocity in this scenario
Thus, in this situation, we find the acceleration to be zero
It’s understood from Newton's second law
where a is equal to 0
Here, the force due to gravity
equals the force due to buoyancyHence, we can deduce
therefore
as such the upward force is counteracted by the downward force.