Question

Recall the last time you rode in a car. Describe the different types of motion that the vehicle underwent throughout the trip.

Answer 1

different type of motion of the car are possible

Answer 2

those motions can be characterized by the shape of the road, and furthermore they can be characterized by the acceleration of the car. Here are some examples

Answer 3

let's suppose that our car is moving along a curve, with uniform speed, then the motion of our car is accelerated, even if its speed is constant along the time. That acceleration is called centripetal acceleration, sice it can be represented by a vector directed as the radius of that curve, an oreinted toward the center of that curve

Answer 4

example #2
let's suppose that our car is moving along a straight rod, with uniform speed, then we can say that the motion of our car is a uniform straight motion

Answer 5

Can you help me with one more please, when an elevator is at rest on the 2nd floor and moves up to the tenth floor. What type of motion is that?!?!?!?!?!

Answer 6

linear?

Answer 7

since the elevator is moving with constant speed, then its motion is uniform and vertical

Answer 8

ok so what happens to the motion when my car is on a bumpy and elevated road.

Answer 9

can you make a drawing of your road?

Answer 10

suppose it's a straight but with a upward slope like this /

Answer 11

like this?

Answer 12

yusssss

Answer 13

we have to distinguish two cases:
case #1
if the speed of our car is constant, then we have a straight uniform motion

case #2
if the speed is not uniform, say it is accelerated, with constant and positive acceleration, then the motion of our car is a straight accelerated uniformly motion

Answer 14

what other possible motions i can encounter while sitting in the passenger's seat???

Answer 15

another possible motion is a decelerated uniformly motion, when, for example, our car is approaching to a railroad crossing, our car has to be stop itself before to reach that railroad crossing

Answer 16

Thank you ssooooo much, stay cute and smart!!! :")

Answer 17

thanks!! :)

Answer 18

@asib1214 another is the normal force of the car exerted on you during a turn. you have an inertia/momentum and a natural tendency to travel in the direction you were. when the car starts turning, the car "gets in your way" and delivers a force equal to the centripetal force of the car in the turn.

Answer 19

medal me

Answer 20

don't get mad ata me for not medalling you cause i've already chosen my best response. HAHAHA LOL Next time for shore!!!

Answer 21

if an object has an initial velocity of 10m/s [N] and final velocity of 10m/s [S]. The object has clearly not accelerated. t/f and why

Answer 22

@Ehsan18

Answer 23

how do you define acceleration?

Answer 24

acceleration describes the change in velocity over time or the rate of change of velcity.

Answer 25

but styll can't the velocity change in the middle?!?!?!

Answer 26

but we take the initial and final values only! why describing a change!

Answer 27

my only concern was that even though the object started with 10m/s but still during the trip velocity might have changed and then ended up 10m/s in the end....

Answer 28

ah! whenever in physics and maths we find the change between two elements we deal with the initial and the final value!

Answer 29

it;s k thanks!!!

Answer 30

@Ehsan18 hey buddy do you know how'd i convert an acceleration of an object into km/h. For Example An object travels at an average acceleration of 7.2m/sec^2, how'd i convert that to km/hrs?!?!?! Thanks in advance!!!