Answer:
The answer is a prism
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Answer:
-1.69 m/s²
Explanation:
We are told the crane pulls up the mass with a force of 1150 N.
This means it is in an opposite direction to gravity and thus acceleration(a) is negative.
Now, the gravity is acting downwards, thus, total force is;
F = mg - ma
1150 = 100(9.81 - a)
Divide both sides by 100 to get;
11.5 = 9.81 - a
a = 9.81 - 11.5
a = -1.69 m/s²
Answer:
F = 3116.49 N
Explanation:
given,
mass of the child = 15 kg
speed = 59 mi/hr
time taken to come to rest = 0.11 s
force on the boy = ?
1 mi/hr = 0.447 m/s
59 mi/hr = 59 × 0.447 = 26.37 m/s
a=239.73 m/s²
the calculation of force
Force = mass × acceleration
F = m × a
F = 13 × 239.73
F = 3116.49 N
Answer:
the electric current that is difficult to flow can cause resistance