Question

A ball is suspended from the ceiling of a parts the brakes are applied and the speed of car changes from 5 metre per second to 5 by 3 metre per second during the time interval of 3 seconds the angle that this thread will divert from vertical is​

Answer 1

Answer:

We have,

36 kmph = 10 m/s

v=u+at

∴a=−

5

10

∴a=−2m/s

2

Also,

g=10m/s

2

Net acceleration,

a

T

=

a

2

+g

2

an angle of net acceleration,

tanθ=

g

a

=

10

2

∴θ=tan

−1

(

5

1

) with vertical