A car starts from rest and accelerates at 9 m/s². After 240 m. the final speed is 66 m/s.
<h3>What is Uniformly Accelerated Motion?</h3>
Uniformly Accelerated Motion is the motion of an object where the acceleration is constant.
A car starts from rest, that is, its initial speed is 0 m/s. It accelerates at 9 m/s². We can find the final speed after 240 m using the following kinematic equation.
v² = u² + 2 × a × s
v² = (0 m/s)² + 2 × (9 m/s²) × 240 m
v = 66 m/s
where,
- v is the final speed.
- u is the initial speed.
- a is the acceleration.
- s is the displacement.
A car starts from rest and accelerates at 9 m/s². After 240 m. the final speed is 66 m/s.
Learn more about Uniformly Accelerated Motion here: brainly.com/question/10178440
Answer:
Explanation:
During a car collision momentum of vehicle ceases within a fraction of seconds so Force due to the impulse is huge.
Impulse is defined as the product of average force and time. If we can increase the period of collision for the same impulse then the average force imparted will be less.
If we can increase the time period then damage due to collision will be less.
The red at the bottom is just the holder for the beaker. It’s not apart of the density.
