Question

Five polyester balls labelled P, Q, R, S and T are suspended from insulating threads. Several experiments are performed on the
balls and the following observations are made.
(1) Ball Prepels R and attracts Q.
(2) Ball S attracts Q and has no effect on T.
(3) A negatively charged rod attracts both P and T.
Which one of the following options correctly describes the nature of charges on the respective balls (zero refers to uncharged)?​

Answer 1

Step-by-step explanation:

explanation:

Given:

Mass of the elephant = 1000 kg

Velocity of the elephant = 15 m/s

To find:

Momentum of the elephant

Solution :

\sf{Momentum = m \times v}Momentum=m×v

\sf{\longrightarrow} \: p = 1000 \times 15⟶p=1000×15

\sf{\longrightarrow} \: p = 15000 \: kg \: ms^{ - 1}⟶p=15000kgms−1

Momentum = 15000 kg m/s

Therefore, the momentum of elephant is 15000 kg m/s.

Answer 2

Answer:

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