The mass of the cart is 0.167 kg
Explanation:
We can solve the problem by using Newton's second law, which states that the net force applied to an object is equal to the product between its mass and its acceleration:
where
F is the net force acting on an object
m is its mass
a is its acceleration
For the cart in this problem, we have
F = 0.5 N is the net force applied
is the acceleration
Substituting, we find the mass:
Learn more about Newton's second law:
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Answer:
300 m/s
The difference in time between the two bangs is 1 s.
Thus;
t2 - t1 = 1
We know that distance/time = speed.
d2/v - d1/v = 1
Multiply through by v to get;
d2 - d1 = v
Where v is speed of sound in air.
d1 = 350 m
d2 = (150 × 2) + 350 = 650 m
v = d2 - d1 = 650 - 350 = 300 m/s
the force would increase 4 times more
Explanation
more force results more mass or acceleration