If a ball is thrown upward then acceleration due to gravity is taken as +ve or -ve?
Answers
Answer:
it taken as -ve
Explanation:
because we go upward velocity will be decreases and gravitational force also will be decreases therefore if we go upward then gravitational force goes on decreasing and it will be indicated as -g and velocity also will be decreasing and it will be indicated as -ve
hope it will help you
pl make me brainliest
Actually, when a body is projected upwards, the only force acting on it once it is released is gravitational force, and the only acceleration is caused by gravity, and is downwards. When you project a body, it must have some initial velocity. Using the equation of motion,
v=v0+at
we can say that if a body is projected with a certain initial velocity, with acceleration in the opposite direction, then it still travels in the direction of initial velocity, till it's velocity turns to zero
Note that while it is in the air the acceleration of the ball remains the same even though the velocity changes. It is −g when it leaves the hand, −g when it stops instantaneously at the top of its flight, and −g when it hits the ground. That is because the force on the ball mg remains constant (neglecting air resistance and the variation in gravity with distance from the centre of the Earth).
Plzz mark me as Brainliest