in a video game, a flying spaceship moves at a constant velocity of 20 m/s in the positive - x direction…

in a video game, a flying spaceship moves at a constant velocity of 20 m/s in the positive - x direction. the spaceship hits an obstacle and moves in the opposite direction with a constant velocity of 10 m/s. whats the change in velocity of the spaceship?\n\na. - 30 m/s\nb. - 10 m/s\nc. 10 m/s\nd. 30 m/s

in a video game, a flying spaceship moves at a constant velocity of 20 m/s in the positive - x direction. the spaceship hits an obstacle and moves in the opposite direction with a constant velocity of 10 m/s. whats the change in velocity of the spaceship?\n\na. - 30 m/s\nb. - 10 m/s\nc. 10 m/s\nd. 30 m/s

Answer

Answer:

A. -30 m/s

Explanation:

Step1: Define velocities

Let initial velocity ( v_i = +20 , \text{m/s} ) (positive direction), final velocity ( v_f = -10 , \text{m/s} ) (opposite direction).

Step2: Calculate change in velocity

( \Delta v = v_f - v_i = (-10) - 20 = -30 , \text{m/s} )