Question

A train is running at the speed of 42 km/h. If it
Crosses a pole 20 secons. Find the
lenth of the train?​

Answer 1

Step-by-step explanation:

speed= 42 kmph= 42×5/18 m/s

time taken to cross a pole = 20 sec

length of the train = d= time × speed

=( 42×5/18 )× 20

= 35/3× 20

= 700/3 m

= 233 1/3 m

the lenth of the train? = 233 1/3 m

Answer 2

Answer:

Motion is the action of changing location or position. The study of motion without regard to the forces or energies that may be involved is called kinematics . It is the simplest branch of mechanics.pls follow

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