Question

11. A box of 2 kg mass moves up a ramp from point A to
B at a constant speed. Given that the surfaces are smooth
(frictionless), what is the gain in the potential energy of
the box? (g = 10 N/kg )
6 m
5m
4m
4
m
A
3 m
(a) 80J
(b) 100J
() 2005
(d) 220 J​

Answer 1

Answer:

80J

Explanation:

simple.use mgh formula

here height gained equals 4m

Answer 2

Answer:80 J

Explanation:

P.E = mgh

Mass: 2kg

g: 10

h: 4

P.E = 2*10*4

= 80J