BITSAT 2019 Slot 2 Solved Paper

F=(20

^

i

+10

^

j

)
∴ Fx=20N and Fy=10N
∴ Acceleration,
ax=

Fx

m

=

√20

1

ax=20m∕s2
and ay=

Fy

m

=

10

1

=10m∕s2
∴ Displacement of body in x-direction in 2s.
x=uxt+

1

2

axt2
=0+

1

2

×20×22
=40m
∴ Displacement of body in y-direction in 2s.
y=uyt+

1

2

ayt2
=0+

1

2

×10×22
=20m
∴ Position of the body at t=2s
r=x

^

i

+y

^

j

r=40

^

i

+20

^

j