Given that 0 cos ,
t P P qx P
⎛ ⎞ = − ⎜ ⎟ ⎝ ⎠ where t represents
time in second and x represents distance in meter.
Which of the following statement is false?
(1) P and P0 have same unit
(2) t
P
have same unit as qx
(3) The unit of t is same as P
(4) t
qx P − have same unit as P
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