Question

49.
A body is thrown at angle 30° to the horizontal with the
velocity of 30 m/s. After 1 sec, its velocity will be (in m/
s) (g= 10 m/s2)​

Answer 1

Explanation:

since vertical component are under influence of gravity and horizontal is constant

Answer 2

Answer:

V = 26.45 m/s

Explanation:

Ф = 30°                    &                  U = 30 m/s

t = 1 s                        &                  g = 10 m/s²

Ux = U cosФ = 30 cos30° = 30 x √3/2 = 30 √3/2 m/s

Uy = U sinФ-gt = 30 sin30° -10x1 = 5 m/s

                V = √Vx² + Vy²

                V =  √( 30 √3/2)² + (5)²

                V = √675 + 25

                V = √700 m/s

                V = 26.45 m/s