$A$ football is kicked into the air vertically upwards. What is its $(a)$ acceleration and $(b)$ velocity at the highest point?
(N/A) When a football is kicked vertically upwards,it moves under the influence of gravity alone (ignoring air resistance).
$(a)$ At the highest point,the football is momentarily at rest before it starts moving downwards. However,the gravitational force continues to act on it. Therefore,its acceleration is equal to the acceleration due to gravity,$g \approx 9.8 \ m/s^2$,directed vertically downwards.
$(b)$ At the highest point,the football momentarily stops before changing its direction of motion. Therefore,its velocity at the highest point is $0 \ m/s$.
$(a)$ At the highest point,the football is momentarily at rest before it starts moving downwards. However,the gravitational force continues to act on it. Therefore,its acceleration is equal to the acceleration due to gravity,$g \approx 9.8 \ m/s^2$,directed vertically downwards.
$(b)$ At the highest point,the football momentarily stops before changing its direction of motion. Therefore,its velocity at the highest point is $0 \ m/s$.
Explore More
Similar Questions
$A$ body thrown vertically up with initial velocity $52 \,m/s$ from the ground passes twice a point at $h$ height above at an interval of $10 \,s$. The height $h$ is .........$m$ $(g=10 \,m/s^2)$.
Difficult
View Solution$A$ balloon rises from rest with a constant acceleration $g/8$. $A$ stone is released from it when it has risen to height $h$. The time taken by the stone to reach the ground is
Medium
View Solution$A$ stone is thrown with an initial speed of $4.9 \, m/s$ from a bridge in a vertically upward direction. It falls down into the water after $2 \, s$. The height of the bridge is .......... $m$.
Easy
View Solution$A$ body projected vertically upwards with a certain speed from the top of a tower reaches the ground in $t_1$. If it is projected vertically downwards from the same point with the same speed,it reaches the ground in $t_2$. Time required to reach the ground,if it is dropped from the top of the tower,is:
DifficultJEE MAIN 2024
View Solution$A$ very large number of balls are thrown vertically upwards in quick succession in such a way that the next ball is thrown when the previous one is at the maximum height. If the maximum height is $5\, m$,the number of balls thrown per minute is (take $g = 10\, ms^{-2}$):-
Difficult
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo