Chapter 2&3 - Kinematics - Falling Objects and Vectors

Which is the only thing that really influences an object when falling?

(1st Letter - Uppercase)

(a)  

Whenever an object purely falls, gravity is worked __________ in word problems.

• negatively

• positively

• neutrally

Whenever an object rises and falls, gravity is worked __________ in word problems.

• negatively

• positively

• neutrally

At the highest point of a rising and falling object trajectory, this concept is zero.

(1st Letter - Uppercase)

(a)  

In a symmetrical vertical motion, this concept is the same at the beginning and at the ending.

(1st Letter - Uppercase)

(a)  

At the highest point of a rising and falling object trajectory, the fly time is this fraction of the total fly time.

• 1/2

• 1/3

• 1/4

• 0.5

A rocket rises vertically, from rest, with an acceleration of 3.2 m/s^2 until it runs out of fuel at an altitude of

775 m. After this point, its acceleration is that of gravity, downward.

What is the velocity of the rocket when it runs out of fuel?

(Through the work, use all the decimals in the calculator, for the answer, round to the nearest unit)

(a)  

A rocket rises vertically, from rest, with an acceleration of 3.2 m/s^2 until it runs out of fuel at an altitude of

775 m. After this point, its acceleration is that of gravity, downward.

How long does it take to reach the point of total fuel depletion?

(Through the work, use all the decimals in the calculator, for the answer, round to the nearest unit)

(a)  

A rocket rises vertically, from rest, with an acceleration of 3.2 m/s^2 until it runs out of fuel at an altitude of

775 m. After this point, its acceleration is that of gravity, downward.

What maximum altitude does the rocket reach?

(Through the work, use all the decimals in the calculator, for the answer, round to the nearest unit)

(a)  

A rocket rises vertically, from rest, with an acceleration of 3.2 m/s^2 until it runs out of fuel at an altitude of

775 m. After this point, its acceleration is that of gravity, downward.

How much time does the rocket take to reach maximum altitude?

(Through the work, use all the decimals in the calculator, for the answer, round to the nearest unit)

(a)