Question

PLEASE HELP ME URGENT​

Answer 1

work done=2000J and power=1000w

Step-by-step explanation:

(a) Work done= Gravitational potential energy

W=mgh

Data,

m=10kg

h=20m

g=10N/kg

W=10kg*10N/kg*20m

W=2000J or 2kJ

(b). power=work done/time

P=2000/2

P=1000w

Answer 2

Here's the solution,

A.) calculate work done :

we know,

`weight \: = mass * acceleration`

• 
  `weight = 10 * 10`

• 
  `weight = 100 \: Newtons`

And,

`work \: done = force * dispacement`

• 
  `work \: done = 100 \: * \: 20`

• 
  `work \: done = 2000 \: joules`

B.) find power :

`power = (work \: done)/(time)`

• 
  `power = (2000)/(2)`

• 
  `power = 1000 \: watt`