Question

A 55 kg block needs to be lifted 30m. Once lifted, what is the block’s potential energy?

Answer 1

The potential energy of the 55 kg block that is lifted 30 m can be calculated using the formula: Potential Energy = mass x gravity x height. Plugging in the values, the potential energy of the block is 16,170 Joules.

Step-by-step explanation:

The potential energy of a block lifted to a certain height can be calculated using the formula:

Potential Energy = mass × gravity × height

Given that the mass of the block is 55 kg, the acceleration due to gravity is 9.8 m/s2, and the height is 30 m, we can plug in these values to calculate the potential energy of the block:

Potential Energy = 55 kg × 9.8 m/s2 × 30 m = 16,170 J

Therefore, the potential energy of the block is 16,170 Joules.

Answer 2

Mass of block = 55kg

Height = 30m

Block's potential energy at height of 30 m=/

As

Potential energy = mgh

g=9.8m/sec²

So P.E= (55kg)(9.8m/sec²)(30m)

P.E= 16170 kgm²/sec²

P.E= 16170 joules