Question

physics help?

Answer 1

1)

L.H.S = [L * L * T^-2] = L^2/T^2

R.H.S = L^2 * L * T^-1 * T ^ -4 = L^3/T^5

L.H.S != R.H.S ( not consistent)

Can you continue the rest ?

Answer 2

@TrojanPoem sorry I'm so lost, can you explain please?

Answer 3

(Depends on what you were taught , but generally)

Dimension => Symbol
mass = > M
Length => L
Time => T
Temperature => Q

You take the Left hand side, and replace each quantity with it's dimension

for ex unit of acceleration = m/s^2

meter is length
second is time

so

dimension of acceleration = L /T^2 or equivalently L * T^-2

you do the same with the right side.

if both sides get same dimension after simplifying then , it's consistent otherwise, not.

Answer 4

You divide and multiply normally, but in addition you just take one

so L + L + L + L + ...... = L

The same goes for substraction L - L = L ( not zero)

Answer 5

unit of constants = 1

x = vt + 0.5 vt^2

L.H.S = L

R.H.S = L * T^-1 * T + L * T^-1 * T^2

= L + LT ( can't be simplified further )

so this equation is not correct and not consistent.

(by the way, it was clear as it's newton law x = vt + 0.5 at^2 )

Answer 6

I think I kinda understand it.. is it okay if we work one together?

Answer 7

Sure, work all of them. I will check the answers.