What is it when a car speeds triples its kinetic energy?

What is it when a car speeds triples its kinetic energy?

When a car’s speed doubles, what happens to its kinetic energy? When its speed triples? If a car’s speed doubles, its kinetic energy increases by 4, if its speed triples then the kinetic energy increases by 9.

At what point in its trajectory does a projectile has maximum speed?

Answer. Answer: In a Trajectory the projectile would have Minimum velocity at Trajectory point ( At the maximum height ) . & Possess Maximum velocity at initial projection point (due to initial acceleration) & at the point when projectile hits the ground .

What is the angle of projectile at which HMAX and range are equal?

Complete step by step answer: If the angle of projection is 75.96∘, the maximum height is equal to the horizontal range.

Why we can’t use 2nd and 4th angle projection?

Overlapping projection views create confusion in the drawing. Therefore the 2nd angle projection system is not used to draw engineering drawings. Similarly when the object is placed in the 4th quadrant both top and front view will overlap. Therefore fourth angle projection is also not used.

Why is third angle projection preferred?

Third angle projection is widely used in the United States. The projection planes come between the object and observer. The plane of projection is taken as transparent in 3rd angle projection.

What is first angle of projection?

First-angle projection: In this type of projection, the object is imagined to be in the first quadrant. Because the observer normally looks from the right side of the quadrant to obtain the front view, the objects will come in between the observer and the plane of projection.

Why is isometric angle 30?

The reason to draw at 30 degree is because at 30 degree all the three axis vary in the same proportion. That is why the figure looks perfect. All the three planes( ie X, Y and Z) are equally inclined to each other at an angle of 120 degrees to each other(ie 360/3=120).