Question

A particle starts moving from the position of rest under a constant acceleration. It travels a distance x in the first 10 sec and distance y in the next 10 sec, then:
(1)y = x
(2)y = 2x
(3)y = 3x
(4)y = 4x

Answer 1

Answer:

initially velocity is zero, and acceleration is a, so distance covered in 10 sec is x=

2

1

a10

2

=50a

now distance covered in total 30 sec is x+y=

2

1

a30

2

=450a

so y=400a,x=50a

so y=8xm

best option is option A.

Answer 2

hey it will be 1)y=y

and please dont deleate my answer