Answer:
100m: 4.9 kJ
200m: 9.8 kJ
1000m: 49.1 kJ
Explanation:
In order to calculate this, you just have to calculate the PE of every cilynder, and as you know the PE is calculated with the next formula:
SO we just hve to insert the values into the formula to get our results, remember that the height will change with every sample because we are putting the cylinder at different heights:
100m:
200m:
1000m:
And you have the different heat generated by each cilynder at different heights.
Answer
given,
mass = 100 kg
acceleration = 10 m/s²
A mass 20 kg slides over 100 kg block
acceleration = 3 m/s²
horizontal friction exerted by the 100 kg block on 20 kg
using newton's second law
F - f = 0
F = f
f = ma
f = 20 × 3
f = 60 N
now net force acting on the 100 kg block
F_net = m a
F_net = 100 x 10
F_net = 1000 N
after 20 kg block falls the acceleration of the bock
F = 1000 +60
F = 1060 N
acceleartion on the block
a = 10.60 m/s²