Problemas
Henry tossed up a ball with an initial velocity of 19.6m/s It will take square to reach the maximum height. If he climbs a 20 m high cliff and toss the ball upwards with same inthal velocity of 19.6m/s it will reach the ground after square
Roztwór
Sergio
avanzado · Tutor durante 1 años
4
(289 Votos)
Respuesta
To solve this problem, we kinematic equations of motion under constant acceleration due to gravity.1. Time to reach the maximum height when tossed from the ground:Given:- Initial velocity,
- Acceleration due to gravity,
The time to reach the maximum height can be found using the equation:
Substituting the given values:
So, it will take 2 seconds to reach the Time to reach the ground when tossed from a 20 m high cliff:Given:- Initial velocity,
- Height of the cliff,
- Acceleration due to gravity,
The total time to reach the ground can be found using the equation:
Substituting the given values:
First, calculate the term inside the square root:
Now, take the square root:
Finally, substitute back into the equation:
So, it will take approximately 4.83 seconds to reach the ground when tossed from the 20 m high cliff.Therefore, the answers are:- It will take 2 seconds to reach the maximum height.- It will take approximately the ground when tossed from the 20 m high cliff.