Brandon has a Nissan GTR. He drives 198.5 miles in 2.3 hours. What is his average speed?
2 answers:
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Answer:
The drop time ball 1 is less than the drop time of ball 2. A further explanation is provided below.
Explanation:
The net force acting on the ball will be:
⇒
Here,
F = Force
m = mass
g = acceleration
Now,
According to the Newton's 2nd law of motion, we get
⇒
To find the value of "a", we have to substitute "" in the above equation,
⇒
⇒
We can see that, the acceleration is greater for the greater mass of less for the lesser mass. Thus the above is the appropriate solution.
Answer:
3) 52500N
Explanation:
We use the mathematical definition of impulse as follows;
were F is the force experienced, t is the time of impact, m is the mass of the object and v is the velocity of impact.
Given; m = 4.5kg, v = 35m/s, t = 3 milliseconds
however,
From equation (1);
.
Substituting all necessary values into equation (2), we obtain the following;