Answer:
E = 62.72 J
Explanation:
Given that,
The mass of a ball, m = 4 kg
The teacher raised the lawn bowling ball to a height of 1.6 meters before
they released it.
We need to find the gravitational potential energy of the ball.
We know that,
E = mgh
Where
g is acceleration due to gravity
So,
E = 4 kg × 9.8 m/s² × 1.6 m
E = 62.72 J
So, the gravitational potential energy of the ball is equal to 62.72 J.
Answer:
P.E.=29.4Nm
Explanation:
given data
m=1kg
h=3m
g=9.8m/s²
to find
gravitational potential energy=P.E.=?
solution
P.E.=mgh
PUTTING VALUES
P.E.=1kg×9.8m/s²×3m
P.E.=29.4Nm
Vf= at + Vi
Since at = 8m/s2 * 2 = 16m/s2
Vi=18m/s
=>Vf = 16m/s2 + 18m/s = 34m/s
So, the new velocity is 34m/s
Hello!
The velocity function is:
a) 2.3 s earlier, we can make
t = -2.3 s, in relation to our initial time:
b) Now we can make
t = 2.3 s:
