Table of Contents
- 1 What will be the height of the ball after 3 seconds?
- 2 What is the velocity of the ball at 3 seconds?
- 3 What is the force on the ball when it reaches half its maximum height?
- 4 How far does a ball fall in 3 seconds?
- 5 Which is usually greater the maximum force?
- 6 What forces are acting on a ball that is thrown in the air?
- 7 How long does it take a ball to reach its maximum height?
- 8 What is the final velocity of the ball when it stops?
What will be the height of the ball after 3 seconds?
150 feet
After 3 seconds, the height of the ball is 150 feet.
What is the velocity of the ball at 3 seconds?
To go from a speed of zero to 2m/s in 1 second means that at the 2 second mark, the speed will be 4m/s, and at 3 seconds, the speed will be 6m/s. Over the 3 seconds, the average speed will be (0+6)/2 = 3m/s. To distance traveled after 3 seconds going an average of 3m/s is 3(3) = 9 m.
What is the acceleration of a ball at maximum height?
At maximum height, the ball is momentarily at rest as it changes its direction of motion before accelerating towards the surface of earth. Hence at maximum height the magnitude of velocity is zero and acceleration is same as the acceleration due to gravity ie. 9.8 m/s^2.
What is the force on the ball when it reaches half its maximum height?
If air resistance is neglected, what is the force on the ball: (a) when it reaches half its maximum height, and (b) when it reaches its peak? The only external force on the ball at all points in its trajectory is the downward force of gravity.
How far does a ball fall in 3 seconds?
What is free fall speed?
| Seconds after object has begun falling | Speed during free fall (m/s) |
|---|---|
| 1 | 9.8 |
| 2 | 19.6 |
| 3 | 29.4 |
| 4 | 39.2 |
What is the velocity of the ball at its highest point?
zero
At a projectile’s highest point, its velocity is zero. At a projectile’s highest point, its acceleration is zero.
Which is usually greater the maximum force?
In general, the maximum force of static friction is always greater than or equal to kinetic friction.
What forces are acting on a ball that is thrown in the air?
There are three forces that act on a baseball in flight. The forces are the weight, drag, and lift. Lift and drag are actually two components of a single aerodynamic force acting on the ball. Drag acts in a direction opposite to the motion, and lift acts perpendicular to the motion.
How do you calculate the velocity of a vertically thrown ball?
If a ball is thrown vertically upwards with an initial velocity V0then here is a set of formula for your quick reference. 1) Maximum height reached = H = V02/ (2 g) 2) Velocity at the highest point = 0 3) Time for upward movement = V0/g 4) Time for downward movement = V0/g 5) Total time of travel in air = (2 V0)/g
How long does it take a ball to reach its maximum height?
A fan observes that it takes 3.00s for the ball to reach its maximum height. Find (a) the balls initial velocity and (b) the height it reaches. Since the ball’s motion is entirely vertical, we can use the equations for free fall to find the initial velocity and maximum height from the elapsed time.
What is the final velocity of the ball when it stops?
After a certain time period t, the ball reaches a height beyond which it can’t move upwards anymore and stops there i.e. its velocity becomes zero at that height. And for this upward movement, the final velocity v2 is 0 because the ball has stopped at the end of this upward traversal.
What is the initial velocity in the vertical direction?
You have correctly figured out that the initial velocity in the vertical direction is 14.14. You also seemed to figure out that the vertical velocity would be 0 at the maximum height. There shouldn’t be any need to divide anything in half in this situation.