An automobile with an initial speed of 4.30m/s accelerates uniformly at the rate of 3.00 m/s2 find the final speed and the displacement after 5.00s

1) Final speed

The final speed of the car after t=5.00 s can be found by using the following equation:

where u is the initial velocity, a is the acceleration and t the time. In this problem, u=4.30 m/s, a=3.00 m/s^2 and t=5.00 s; substituting these data into the equation, we find

2) Displacement

The displacement of the car can be calculated by using the following equation:

Substituting the data of the previous part of the problem, we find

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

increases it