CORRECT AND CLEAR ANSWER WILL BE GIVEN BRAINLIEST An object of mass 0.30 kg is thrown vertically upwards and reaches a height of 8.0 m. Calculate: (a) it's final potential energy (b) The velocity with which it must be thrown, neglecting air resistance ( assuming g = 10m/s²)

Final potential energy = 24 Joule

The velocity with which object must be thrown = m/s

Step-by-step explanation:

Given:

Mass of object, m = 0.30 Kg

Height of object, h = 8 m

Acceleration due to gravity, g = 10

a) Formula for Potential Energy:

Where m is the mass of object

g is acceleration due to gravity and

h is the height of object

Putting the values of m, g and h

b) Formula for initial and final velocity:

where v is the final velocity

u is the initial velocity with which the object is thrown

g is acceleration due to gravity and

h is the height obtained by object

here v = 0 at the height 8 m because it will come to rest at the point it attains the maximum height.

h = 8m

g = -10 (negative because the object's velocity is decreasing)

Putting the values to find 'u':

43

step-by-step explanation:

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