Question

2. A train is travelling at
of 90 km h, Drakes are applied
so as to produce a uniform
acceleration of 0.5 m/s power 2. findhow far the train will go before itIs brought to rest.
3. A trolley, while going down an
aninclined plane, has acceleration of 2 cm/s power 2, What willbe its velocity 3 s alter the start?
4. A racing car has a uniform
acceleration of 4 m/s power 2. Whatdistance will it cover in 10 s after start.
6. A stone is thrown in a vertically
upward direction with a velocity
of 6 m/s. if the acceleration of thestone during its motion is 10m/s power 2in the downward direction, whatwill be the helght attained by thestone and how much time will it
take to reach there?

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Answer 1

Answer:

1)v=90×1000/3600=25m/s

u=0

a=0.5m/s

2as=v^2-u^2

s=25×25-0/2×0.5

=625m