Question

the car was travelling at a graet speed​

Answer 1

Answer:

light speed haaaaaa aaaaaiii

Answer 2

Answer:

Two astronauts, each of mass 75kg, are floating next to each other in space, outside the space shuttle. They push each other through a distance of an arm's length =1m each with a force of 300N.If the final relative velocity of the two, w.r.t each other is V

0

m/s, find the value of

4

(V

0

)

2

( Note that both astronauts are displaced by 1m)

Hard

ANSWER

Work=Force×.Displacement

=300×(1+1)=600N−m, which is converted to kinetic energy.

Thus 2×

2

1

×75×v

2

=600

or,v=

8

m/s

Relative velocity will thus be 2v (because both move with v in opposite direction).Thus,

4

V

o

2

=

(2×

8

)

2

=8

here you have an example...

hopes it helps you....