According to Newton's Second Law, the force of the club hitting the golf ball will cause it to accelerate. At the moment of impa
2 answers:
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Answer:
The statement is true: velocity and acceleration have opposite directions in the interval of braking.
Explanation:
Let's say we have a velocity .
The acceleration is the rate of change of the velocity
. This means that if
is <em>increasing during</em> time, then
must be positive. But if
is <em>decreasing over</em> time, then
will be negative (even though the velocity is positive).
Mathematically:
decreases ⇒
⇒.
Example:
1) 
<Solve using the formula which is:
Mass=Density×Volume
2)
3)
(Length × Width × Height)
(Answer=7.5)
Mass=Density×Volume
2)
3)
Answer:
227.9MPa
Explanation:
Length of the flaws is given by
2b = 5.8microns
b = 2.9 × 10⁻⁶m
The relation between the radius of curvature and length and width of the elliptical flaw
Equation for stress at the tip of an elliptical surface flaw