Question

An object is thrown vertically upwards and rises to a height of 1000 cm. Calculate the velocity with which the object was thrown upwards?
(1 Point)

Answer 1

Answer:

Explanation:

Given :

• Displacement (s) = 1000 cm
• Final velocity (v) = 0 m/s
• Acceleration due to gravity (g) = -9.8 m/s²

To Find :

• Velocity.

Formula to be used :

• 3rd eqn. of motion, ie,.. v² = u² + 2(-g)s

Solution :

★Converting unit,

s = 1000cm

⇒ s = 1000/100

⇒ s = 10 m

★Velocity,

v² = u² + 2(-g)s

⇒ 0² = u² + 2(-9.8) × 10

⇒ 0² = u² - 19.6 × 10

⇒ -u² = -196

⇒ u = 14 m/s

Hence, Velocity is equal to 14 m/s.

Answer 2

$\Huge\tt{{\color{navy}{{\underline{AN}}}}{\color{blue}{{\underline{SW}}}}{\blue{{\underline{ER}}}}{\color{skyblue}{:}}}$

$\huge\color{navy}{\textbf{\textsf{GIVEN :-}}}$

• Displacement (s) = 1000 cm
• Final velocity (v) = 0 m/s
• Acceleration due to gravity (g) = -9.8 m/s²

$\huge\color{navy}{\textbf{\textsf{TO FIND :-}}}$

• Velocity.

$\huge\color{navy}{\textbf{\textsf{FORMULA :-}}}$

• 3rd equation of motion, i.e. v² = u² + 2(-g)s

$\huge\color{navy}{\textbf{\textsf{SOLUTION :-}}}$

Converting units,

s = 1000 cm

→ s = 1000/10

→ s = 10 m

Velocity,

v² = u² + 2(-g)s

→ 0² = u² + 2(-9.8) × 10

→ 0² = u² - 19.6 × 10

→ -u² = -196

→ u = 14 m/s

Hence, velocity is 14 m/s.

Hope it Helps Buddy ♥️