Question

what is the speed of an apple dropped from a tree after 2 seconds what distance will it cover during this time ?take g=9•8​

Answer 1

Answer:

Step-by-step explanation:

The given value of g (gravity) is 9.8m/s^2.

We gotta find the speed of this apple after 2 seconds and the distance covered in that time.

So, understand the concept that 'g' is not velocity, it's acceleration, so it increases over time. So, at first second the apple will have a speed of 9.8 m/s and at 2nd second it will have a speed of 19.6 m/s.

You can get the answer by multiplying the time by the value of acceleration, so at t=3 sec, the speed would be 9.8 × (3) = 29.4 m/s.

You can get the answer by the 1st kinematical equation also.

v = to find

u = 0

a = 9.8

t = 2

v = u+at

0 + 9.8 × 2

19.6

Answer 2

Answer : 19.6 m/s

$\rule{100}2$

Given :

• Initial speed ( u ) = 0 m/s
• Time = 2 seconds
• Acceleration due to gravity ( g ) = 9.8 m/s²

To Find :

• Final speed of the apple.

Equation Used :

• By first kinematical equation :- $\sf\red v=u+gt$

SolUtion :

Put the given values in the equation. We get,

$\sf v = 0 + 9.8 \times 2$

$\sf v = 19.6\:m/s$

Hence,

The final speed of the apple is 19.6 m/s

$\rule{100}2$

Hey, Do you know ?

• Water can easily run against the gravitational pull when moving up narrow pipes.
• It is proved by scientific theories that the universe is constantly expanding.

$\rule{200}2$

#answerwithquality & #BAL