Question

pls help with this question

Answer 1

thx for your previous help anx

Answer 2

Graph is totally out of whack, but the end result will look similar.

Answer 3

pls help me with answers for 6 - 10

Answer 4

7). The equation for Forece f=ma, depends on each component. So changing one variable changes the outcome.

Example.

M = 50kg
a = 2 m/s^2
F = 50kg x 2m/s^2
F = 100N

but if we change M to 75kg

M = 75kg
a = 2m/s^2
F = 75kg x 2m/s^2
F = 150N

Answer 5

8). Find acceleration

Manipulate the Force equation
F = ma

well F and m are given so

F/m = a

so 4000/1500 = 2.667 m/s^2

Answer 6

for your 7 do you mean 6 or did you skip 6

Answer 7

Skipped 6 for a sec

Answer 8

ight

Answer 9

9). Just use the F=ma equation
F and M are given

F= ma
Manipulation gives us

a = F/m

100g/20N = 5m/s^2
150g/ 20N = 7.5m/s^2
200g/ 20N = 10 m/s^2

Answer 10

for 9 the 200g had greatest acceleration

Answer 11

10). There is no change in the motorcycles movement, so the Net force is 0.

Its motion in one dimension and one direction. Straight line means no change, which means no net force.

Answer 12

Yes.

Answer 13

6). Find net force to change speed.

m = 2kg
v = 6m/s
t = 3s

6/3 = 2
F = ma
F = 2(2) = 4N

Answer 14

That v should be and a..i was thinking velocity instead of acceleration. my bad.

Answer 15

thx so much

Answer 16

What level of physics is this by the way?

Answer 17

physical science high school grade 9

Answer 18

Ohhh..okay, I was wondering why they were all questions that dealt directly with the Force equation and its 2 manipulations. I was figuring 8th grade physics.

Answer 19

its easy for you huh

Answer 20

I study mathematics and physics in university..of course its easy (=

Answer 21

then can you help me with my last 6 problems pls thx so much anyway if you cant

Answer 22

I thought I just did the last 6? but yeah, post em.

Answer 23

errr 4..nvm I can't count. Go figure.

Answer 24

yea thx you did the last problems of one my pages of work this is the last page

Answer 25

2). The reaction force of your foot on the ground pushes back up on you "pushing you forward."

Answer 26

Skipping 1 for a sec.

Answer 27

3). Newton's 3rd law says: "For every action, there is an equal or opposite force.

Basically there is a positive anda negative force, or there is a force that is congruent to the first force. The size of the forces are equal. Resulting in zero or equilibrium.

Answer 28

4). Momentum depends on mass and velocity.

The equation is p = mv

where p is momentum
m is mass
v is velocity.

Answer 29

5). Its newtons 3rd law again, the outward force of the exhaust being pushed through the backward out of the plane, pushes the engine and plane forward.