Physics, 28.02.2020 22:47, lex68259100

Which of the following statements are true about an object in two-dimensional projectile motion with no air resistance? (There could be more than one correct choice.) A) The speed of the object is constant but its velocity is not constant. B) The acceleration of the object is constant but its object is + g when the object is rising and -g when it is falling. C) The acceleration of the object is zero at its highest point. D) The speed of the object is zero at its highest point. E) The horizontal acceleration is always zero and the vertical acceleration is always a non-zero constant downward

Answers: 3

Show answers

Answers

Object often experience acceleration when in motion. The statement that is true is that The horizontal acceleration is always zero and the vertical acceleration is always a non-zero constant downward.

Two-dimensional projectiles often shows constant downward acceleration due to gravity. Always note Nothing can accelerates a projectile horizontally, so horizontal acceleration is simply zero.

A projectile in motion is said too be the same with the same horizontal velocity throughout its flight. This is because there is no force exists in the horizontal direction, but its velocity will be altered in the vertical direction as a result of the force of gravity.

Learn more from

link

answered: ashleybashaam6821

The correct answers are

The following statements are true about an object in two-dimensional projectile motion with no air resistance

D) The speed of the object is zero at its highest point.

E) The horizontal acceleration is always zero and the vertical acceleration is always a non-zero constant downward

Explanation:

A) The speed of the object is constant but its velocity is not constant.

False the vertical velocity increases on descent

B) The acceleration of the object is constant but its object is + g when the object is rising and -g when it is falling.

False, the acceleration is -g when the object is rising

C) The acceleration of the object is zero at its highest point.

False, the acceleration is constant in magnitude throughout the motion

D) The speed of the object is zero at its highest point.

True, the direction of motion changes at the highest point from hence the body comes to rest and the speed is zero

E) The horizontal acceleration is always zero and the vertical acceleration is always a non-zero constant downward

True, the horizontal acceleration has associated force during motion but the vertical acceleration is due to gravity which is constant downwards

Which of the following statements are true about an object in two-dimensional projectile motion with

answered: Guest

If football was tossed in air without gravity or friction the ball would go into space

answered: Guest

it would be c. predictability

Other questions on the subject: Physics

Physics, 21.06.2019 19:10, geg05

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Answers: 1

continue

Physics, 21.06.2019 20:00, aa985960

Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.

Answers: 1

continue

Physics, 22.06.2019 02:30, JanaMiqdad1003

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

Answers: 1

continue

Physics, 22.06.2019 03:00, liquidmana42

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

Answers: 2

continue

Do you know the correct answer?

Which of the following statements are true about an object in two-dimensional projectile motion with...