Maria throws a ball straight up with an initial velocity of 10 m/s.
What is its velocity at the highest point?
What is its velocity when it returned to the elevation from where it is thrown ?
What is its acceleration at the highest point?
What is its acceleration just before it hits the ground?
After 1 sec what is the acceleration of the ball?
I need it asap. Super thankyouuuu. :)
Velocity at the highest point- 0m/s
Velocity when it returned to the elevation from where it was thrown-0m/s
Acceleration at the highest point-0m/s^2
Acceleration just before it hits the ground= 9.8m/s^2(acceleration on gravity)
Acceleration of the ball after 1 second = -9.8m/s^2
what is its velocity when it returned to the elevation from where it was thrown?
cannot be determined
0 m/s
0 m/s2
-10 m/s
thanks
clearly, v=0 at highest point (ball stops and starts to fall)
arrival speed = departure speed
a = -9.81 always (gravity)
Thankyoy
To answer these questions, we need to understand the basic principles of projectile motion and the laws of motion. Let's go through each question and break down how to find the answers:
1. What is the velocity at the highest point?
When the ball reaches the highest point of its trajectory, its vertical velocity becomes zero. This is because the ball is momentarily at rest before it starts descending. So, the velocity at the highest point is 0 m/s.
2. What is the velocity when it returns to the elevation from where it is thrown?
The velocity at the highest point is zero, as we just mentioned. As the ball returns to the elevation from where it was thrown, it will have the same magnitude of the initial velocity but in the opposite direction. So, the velocity when it returns to the elevation is -10 m/s (negative since it is in the opposite direction).
3. What is its acceleration at the highest point?
At the highest point, the acceleration acting on the ball is equal to the acceleration due to gravity, which is approximately 9.8 m/s², directed downwards. So, the acceleration at the highest point is -9.8 m/s² (negative since it is in the opposite direction to the initial velocity).
4. What is its acceleration just before it hits the ground?
The acceleration just before the ball hits the ground will still be the acceleration due to gravity, approximately 9.8 m/s². However, since the ball is moving downwards, the acceleration will be positive in this case.
5. After 1 second, what is the acceleration of the ball?
To determine the acceleration after 1 second, we need to know if any additional forces or changes have occurred during that time. If the ball is still in freefall after 1 second, the acceleration would remain the same as before, approximately 9.8 m/s². However, if there are external forces acting on the ball, the acceleration may differ based on those forces.
Remember, these calculations assume no air resistance and a constant acceleration due to gravity. Real-world scenarios may differ due to external factors.