Question

4. A cinder block is sitting on a platform 20 m high. It weighs 79 N. The block has _____________ energy. Calculate it.

5. There is a bell at the top of a tower that is 45 m high. The bell weighs 190 N. The bell has ____________ energy. Calculate it.









6. A roller coaster is at the top of a 72 m hill and weighs 966 N. The coaster (at this moment) has ____________ energy. Calculate it.







PLZZ HELPPPP

Answer 1

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4.15800 joules

5.40500 joules

6.695520 joules

Answer 2

4. the cinder has a potential energy
using the formula mgh
79x10x20= 15800 Joules
5. the bell has a potential energy
using the formula mgh
45x90x10= 40500 Joules
6. potential energy
using mgh
72x966x10= 695520 Joules