Question

an 4) Find the accelaration of object having initia velocity = 7m/s attents 20 m/s in 3 sec. ​

Answer 1

Answer:

Correct option is

D

5 m/s at an angle of tan

−1

(

3

4

) with the direction of initial velocity.

In x direction, V

x

=3m/s

In y direction, V

y

=at=1(4)=4m/s.

V

net

=

V

x

2

+V

y

2

=

3

2

+4

2

=5m/s

at an angle tan

−1

(4/3) with initial direction of velocity.