Answer:
true,true,false
Explanation:
its false because if it is equal it would show an arrow pointing left and a 20 and the same for the right
The answer is 294j by puting it in kinetic energy formula.
<span>PE = mass * height * g = 87.60 J
Frictional force = m * g * sin theta * uk = 4.7 kg * 9.81 m/sec^2 * sin 36.87 * 0.3 = 8.299 N
Work done by friction = force * distance = 41.50 J
Remaining energy to be converted to KE = 87.60 J - 41.50 J = 41.10 J</span>hope it helps
Answer:
0.41
Explanation:
A 49 N block has a mass of 5 kg:
49/9.8
A horizontal force of 50 N giving it an acceleration of 6 m/s^2 means that 30 N is taken up by the acceleration
This leaves 20 N to take care for friction. so the coefficient of friction is:
20/49 = 0.41.