Answer:
or 88.3m/s^2
Explanation:
Using suvat where we list everything that we are given
s=49m
u=0m/s
v=93m/s
a=?
t=we are not given this value, so we don't use
using a formula that doesn't involve time:
rearranging to find acceleration by subtracting u^2 on both sides
then dividing 2s on both sides
so the acceleration is 88.3ms^-2 (1dp)
use F = ma
F : force m : mass a : acceleration
so
f = 5kg * 20 m/s2 = 100 N
Answer:
true
Explanation:
newton's third law of motion states that if body A exerts a force on the body B, then body B will exert an equal and opposite force on body A,
this is called action reaction pair
hope this helps
Force is the change in momentum over a specific time. The change of momentum is therefore the force multiplied by the time that the force acts, so 3000x4.0=12000 N s=12000 kg m/s
The time it takes for the ball to hit the ground from the platform is determined as 1.56 seconds.
<h3>
Time of motion of the ball</h3>
The time of motion of the ball is calculated as follows;
h = vt + ¹/₂gt²
where;
- v is initial vertical velocity = 0
- t is time of motion
- h is height of fall of the ball
h = 0 + ¹/₂gt²
h = ¹/₂gt²
t = √(2h/g)
t = √(2 x 12 / 9.8)
t = 1.56 seconds
Thus, the time it takes for the ball to hit the ground from the platform is determined as 1.56 seconds.
Learn more about time of motion here: brainly.com/question/2364404
#SPJ1
