3

Question 1

Neurons 1st law?

Answer 1

Objects will move at constant velocity if undisturbed.

Question 2

Inertial coordinate system?

Question 3

Newton’s 2nd law?

Answer 3

F^-> = m a->

Question 4

Two ways to write F-> ? (2•)

Answer 4

F-> = m a->, F-> = dp-> / dt

Question 5

p-> = ?

Answer 5

m v-> = momentum

Question 6

Neutron’s 3rd law?

Answer 6

Forces always come in equal or opposite pairs.

Question 7

Equation of newton’s 3rd law?

Answer 7

F->_1,2 = - F->_2,1

Question 8

Normal force?

Answer 8

A force that is perpendicular to the surface.

Question 9

????Review vector addition and substraction

Question 10

Single criteria of a non-inertial frame?

Answer 10

The acceleration is non-zero and the velocity is not constant.

Question 11

Normalization?

Question 12

Gravitational constant (G)?

Answer 12

6.67 * 10^-11 N kg^-2 m^2

Question 13

Newton’s equation of gravity?

Answer 13

->F_d = ^r_d (-(G m1 m2) / r_d^2)

Question 14

C is the contact force. C-> = ? (2•)

Answer 14

•N-> + f->^_k or •N-> + f->^_s

Question 15

f->^_k is the kinetic friction. |f->^_k| = ?

Answer 15

mu_k |N->|, N-> is the normal force.

Question 16

What is the criteria of kinetic friction? (2•)

Answer 16

•Independent of the contact area
•Independent of the speed.

Question 17

Static friction (f->^_s)?

Answer 17

The friction that stops the object from moving (v-> = 0)

Question 18

|f->^_s max| = ? (2•) list condition of M_s

Answer 18

M_s |N->| where M_s > M_k

Question 19

Friction force is to the normal force?

Answer 19

Proportional

Question 20

If Mu > 1, then?

Answer 20

Then the friction is greater than the weight of the object. (Easier to lift than to drag)

Question 21

Prandtil-Tomlinson’s Model?

Answer 21

A microscopic model of friction where one atom in a spring goes along potential energy.

Question 22

Tension: T(X) = ?

Answer 22

|F_RL (X)|, where R and L are either sides of a rope.

Question 23

How is tension between both sides of a rope related when acceleration is 0?

Answer 23

The tension between both sides are equal.

Question 24

Normal Force N->?

Answer 24

The force that is perpendicular to the surface. ONLY applicable if the object is touching the surface.

Question 25

Newtons (N)?

Answer 25

kg(m/s^2)