Question

When you run around a track at 5 km/h, your velocity is constant.

Answer 1

True Or False?

Answer 2

False I think...

Answer 3

No, velocity is not constant, because velocity is a vector, it has magnitude and direction. So yes it is false.

Answer 4

A falling leaf has less momentum than a pile of leaves on the ground.

Answer 5

True Or false!

Answer 6

False... the falling leaf has more momentum.

Answer 7

As a moving object's velocity decreases, its momentum decreases.

Answer 8

true or false?

Answer 9

true

Answer 10

An object that decreases its speed also decreases the magnitude of its velocity and decreases the magnitude of its momentum.

Answer 11

A car with an acceleration of -1.3 m/s2 ______.

Answer 12

a.
slows down 1.3 m/s for every meter it travels
c.
slows down 1.3 m/s for every second it travels
b.
speeds up 1.3 m/s for every meter it travels
d.
speeds up 1.3 m/s for every second it travels

Answer 13

http://www.engineeringtoolbox.com/car-acceleration-d_1309.html

Answer 14

plz just answer im lazy..

Answer 15

A car with an acceleration of -1.3 m/s2
negative acceleration means slow down at the rate of 1.3 m/s per second
So, c is the best answer "slows down 1.3 m/s for every second it travels"

Answer 16

An object traveling in a straight line accelerates. What will definitely happen due to the acceleration?

Answer 17

The distance traveled in a certain time will increase.
The displacement covered in a certain time will decrease.
The speed of the object will stay constant.
The velocity of the object will change.

Answer 18

hmmm one minute let me see if I can figure this one out...

Answer 19

ok thnxz!

Answer 20

Sorry I am not sure about this one. :( I am taking physics too.