Displacement of an object with respect to a constant moving (v) frame in the same direction is:
Correct answer: B. x + vt
- A. x - vt
- B. x + vt
- C. x
- D. x + vt + at2
Explanation
Displacement is the movement of an object that changes its position from its actual place. When the object moves at a constant speed in the same direction then the velocity is also constant and it will not change the speed and direction. For example, when we make a movie using a video camera, the camera has to be in motion to capture each frame. At the initial time, t will be 0 and the constant velocity is denoted as v. Here, x is the position of an object (camera) concerning initial time and final time, and to calculate the position at final time use a formula x + vt.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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