Question

Find the displacement of ball in 5 sec, when it is thrown from in upward direction with
speed 40 m/s, (g acceleration due to gravity = 10 m/s)
(A) 85 m
(B) 75 m
(C) 65 m
(D) 200 m
5​

Answer 1

Answer:

Displacement of the ball in 5 sec when it is thrown from in upward direction with

speed 40 m/s is 75m.

Explanation:

Given:

Time, t = 5 sec

Speed, v = 40 m/s

Acceleration due to gravity, g = 10 m/s

To Find:

The displacement of ball in 5 sec, when it is thrown from in upward direction with speed 40 m/s.

Formula to be used:

Height, h = Vi × t + g/2 t²

Solution:

To find the displacement = ?

→ h = Vi × t + g/2 t²

→ h = 40 × 5 + (-10/2) × (5)²

→ h = 200 - 125

→ h = 75 m

∴ Displacement of the ball in 5 sec when it is thrown from in upward direction with speed 40 m/s is 75m.

Answer 2

Answer:

Displacement of the ball in 5 sec when it is thrown from in upward direction with

speed 40 m/s is 75m.

Explanation:

Given:

Time, t = 5 sec

Speed, v = 40 m/s

Acceleration due to gravity, g = 10 m/s

To Find:

The displacement of ball in 5 sec, when it is thrown from in upward direction with speed 40 m/s.

Formula to be used:

Height, h = Vi × t + g/2 t²

Solution:

To find the displacement = ?

→ h = Vi × t + g/2 t²

→ h = 40 × 5 + (-10/2) × (5)²

→ h = 200 - 125

→ h = 75 m

∴ Displacement of the ball in 5 sec when it is thrown from in upward direction with speed 40 m/s is 75m.