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Flashcards in Leftover Mechanics Deck (14):
1

What is the accelaration of a frictionless pulley?

a=(m2-m1)g/(m1+m2)

2

What is the tention of a frictionless pulley?

t= 2m1m2g/(m1+m2)

3

Acceleration of a hung pulley by the sides of a wall?

a= m2g/(m1+m2)

4

Tention of a hung pulley by the sides of a wall?

T= 2m1m2g/(m1+m2)

5

What is the formula of static friction and kinetic friction?

f(s)=μ(s)R
f(k)=μ(k)R

6

Effect of earth's rotation on apparent weight at the equator?

Write the answer on the copy

7

Formula of total linear momentum after elastic 2 dimensional collision?

m1v1+m2v2=m1v1'+m2v2'
Linear Momentum remains conserved
Similarly for kinetic energy as well

8

Formula of elastic collision between a heavy and a light body

Using law of conservation of linear momentum,
v1'=v1
v2'=2v1-v2
;given m1>>m2

9

What happens when perfectly inelastic collision between two bodies

They stick to each other
m1v1+m2v2=m1V+m2V

10

What is the formulaic representation of coefficiant of restitution?

Velocity of seperation= e(Velocity of Approach) where 0

11

What is the relation between linear and angular accelaration?

Linear accelaration a= r x angular accelaration α

12

What is the formulaic representation of radius of gyration?

Moment of Inertia I= MK²
Radius of gyration K= √I/M

13

What is the formula of relation between torque and angular acceleration?

τ=Iα, τ=dL/dt

14

What is the formulaic representation of theorem of parallel axis ?

I=I(cm)+ Md²