Question

Work done by a body is
A) Negative, Positive or zero
B) Always positive
C) Always zero
D) Always Negative​

Answer 1

Answer:

Answer:

two train are running in opposite direction at the speed of 25 km/h and 35km/h .if the length of the train are 185 m and 215 m respectively.

a.fund the time taken to pass each other

b.if they are moving in the same direction how long will they take to pass each other