Is there any limit on speed attained by rocket?

For a rocket to climb into low Earth orbit, it must achieve a speed in excess of 28,000 km per hour. Attaining space flight speeds requires the rocket engine to achieve the greatest thrust possible in the shortest time.

What is the speed of the rocket when it hits the ground?

The acceleration due to gravity is -9.8 meters/sec/sec. A model rocket is launched straight upward. The solid fuel propellant pushes the rocket off the ground at an initial velocity of 200 feet per second.

Can drag be greater than gravity?

The resistive forces are generally proportional to the speed of the object falling. So when they start falling (with initial speed zero) gravitational force will be greater than the resistive force.

What do you think happens to the speed of the ball as it reaches its maximum height?

As the ball rises, its velocity decreases until it reaches its maximum height, where it stops, and then begins to fall. As the ball falls, its speed increases. Therefore, at maximum altitude the velocity of the ball must be zero.

What maximum height will the rocket reach?

1 Expert Answer So our vertex occurs at t=15s. So h(15)=3600ft which is the highest point of the rocket’s travel.

How do you find the speed of an object hitting the ground?

How to use the free fall formula: an example

1. Determine the gravitational acceleration.
2. Decide whether the object has an initial velocity.
3. Choose how long the object is falling.
4. Calculate the final free fall speed (just before hitting the ground) with the formula v = v₀ + gt = 0 + 9.80665 * 8 = 78.45 m/s .

Does a feather fall at the same speed?

If no air resistance is present, the rate of descent depends only on how far the object has fallen, no matter how heavy the object is. This means that two objects will reach the ground at the same time if they are dropped simultaneously from the same height. In air, a feather and a ball do not fall at the same rate.

How much would its speed reading increase for every second if a freely falling ball is somehow equipped with speedometer?

Ex 2.18 Suppose that a freely falling object were somehow equipped with a speedometer. By how much would its speed reading increase with each second of fall? Every second, its speed increases by 10 m/s. That means its acceleration is 10 (m/s)/s.

What happens to the speed of the ball as it falls?

If you drop a ball from the top of a building it gains speed as it falls. Every second, its speed increases by 10 m/s. A ball falling under the influence of gravity is an example of what we call motion with constant acceleration.