A group of students conducted several trials of an experiment to study Newton’s second law of motion. They concluded that tripli
1 answer:
Answer:
Acceleration
Step-by-step explanation:
The Newton's second law of motion can be expressed as;
F = ma
Where F is the force acting on an object, m is the mass of the object and a is the acceleration of the object.
For an object of mass 2kg and acceleration of 5 m/, we have;
= 2 × 5 = 10 N
If we triple the mass,
m = 2 × 3 = 6 kg
Therefore,
= 6 × 5 = 30 N
Thus, at constant acceleration, = 3 ×
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Answer:
1. 0.0167
2. 0.2
3. 0.6
Step-by-step explanation:
Probabilities on Independent Events
If A and B are independent events (the occurrence of A doesn't affect the occurrence of B and vice-versa), then the probability that both events occur is
Being P(A) and P(B) the individual probability of each independent event
The probability that A does not occur is
The probability that B does not occur is
The probability that C does not occur is
We have 3 independent events. We know that because they fire together, no mutual affectation can happen
.
The probability that Abby will hit the target is 1/5.
The probability that Billy will hit the target is 1/4.
The probability that Cathy will hit the target is 1/3
Part 1.
The probability that all three shots hit the target is
The probability that all three shots hit the target is
Part 2.
The probability that only Cathy's shot hits the target is computed assuming Abby and Billy won't succeed
.
3.
The probability that at least one shot hits the target is when one of them succeeds, two of them succed or all of them succeed
But it's easier to find the negated probability of the above, i.e. we compute the probability that NO ONE hits the target and subtract it from 1
P=0.6