Me what is the acceleration of an object if it goes from a velocity of +25 m/s to rest in 5.0 seconds? a. –25 m/s2 b. –5 m/s2 c. +5 m/s2 d. +25 m/s2 (1 pt) taking the direction west to be positive, and east to be negative, what is the average acceleration of a jet ski that goes from rest to 10 m/s west in 4 seconds? a. 2.5 m/s2 b. 0.4 m/s2 c. –0.4 m/s2 d. –2.5 m/s2 which moving body has no acceleration? a. a satellite orbiting at a constant speed b. a person running once around a track at a constant speed c. a car making a turn at a constant speed d. a person running 100 m straight across a field at a constant speed

1. a=Δv/Δt=(v-vo)/t=(0-25)/5=-25/5=-5 m/s²

The "-" sign shows us that the car has a slow motion

2.a=Δv/Δt=(v-vo)/t=(10-0)/4=10/4=2,5 m/s²

3.they do not have acceleration because they go at constant speed

which statement about this sum is true? −245+2.7

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.