the acceleration of gravity on the surface of venus is 8.9 m/s2. would a ball thrown upward from venus return to the ground sooner or later than a ball thrown upward with the same speed on the earth?

downward motion

H=gt²/2
t=sqrt(2H/g)
Time↑= time↓ =>
Total time = 2 •sqrt(2H/g).
Since g(Venus)<g(Earth) ,
t(Venus)>t((Earth)

To determine whether a ball thrown upward from Venus would return to the ground sooner or later than a ball thrown upward with the same speed on Earth, we need to consider the effect of gravity on the ball's motion.

The acceleration of gravity on the surface of Venus is given as 8.9 m/s², which is slightly lower than the acceleration of gravity on Earth (approximately 9.8 m/s²). This means that the force with which an object falls on Venus is weaker compared to Earth.

When a ball is thrown upward, its initial velocity opposes the force of gravity. As the ball moves higher, the gravitational force will decelerate it until it eventually reaches its highest point and starts to fall back to the ground.

Since the force of gravity on Venus is weaker than on Earth, it will take longer for the ball thrown upward on Venus to reach its highest point compared to a ball thrown upward with the same speed on Earth. This is because the weaker gravitational force on Venus will decelerate the ball's upward velocity at a slower rate.

Therefore, a ball thrown upward on Venus will take longer to return to the ground compared to a ball thrown upward with the same speed on Earth.