Question

A sled is at rest at the top of a 2 m high slope. The sled has a mass of 45 kg. The sled's potential energy is J. (Formula: PE = mgh)

Answer 1

Hello!

Data:  

h = 2m

m = 45 Kg

PE = ? (Joule)  

Adopting, gravity (g) ≈ 9,8 m/s²

Formula:  $PE_{grav} = mass * g * height$

Solving:  

$PE_{grav} = mass * g * height$

$PE_{grav} = 45*9,8*2$

$\boxed{\boxed{PE_{grav} = 882\:J}}\end{array}}\qquad\checkmark$

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I Hope this helps, greetings ... Dexteright02! =)

Answer 2

Potential energy= mgh (mass, gravity, height)

g of earth 9.8 m/s^2

So mgh= 45×2×9.8= 882

So potential energy is 882 joules.