Question

A particle is thrown vertically upward. When it reaches the highest point, it has ____________
A) a downward acceleration B) an upward acceleration C) a downward velocity D) a horizontal velocity

Answer 1

Question :-

A particle is thrown vertically upward. When it reaches the highest point, it has ____________

A) a downward acceleration

B) an upward acceleration

C) a downward velocity

D) a horizontal velocity

Answer :-

✅✅ A) a downward acceleration

Explanation :-

When a particle is at the highest point, the final velocity is 0 m/s, as the acceleration due to gravity(g) is constant, and the acceleration is acting on the particle in a negative direction when it was moving upward. But, the particle has its own acceleration too. But it is less than g(a < g), as at the last, the final velocity is 0, which becomes the initial velocity when it comes back.

Therefore, the particle has a downward acceleration when it reaches at its highest point.

Answer 2

Answer:-

A particle is thrown vertically upward. When it reaches the highest point, it has ___.

• A) A downward acceleration
• B) An upward acceleration
• C) A downward velocity
• D) A horizontal activity.

________________...

Justification:-

• Gravitational force always acts between any two objects and it depends upon their masses too.
• Acceleration due to gravity is constant and is acting as a frictional force for it. (Just like frictional force.)
• A time reaches when the particle becomes at rest position.
• But the gravity is constantly pushing the particle to the heavier object.
• Thus, it starts accelerating towards the heavier object following downward motion.