A projectile is projected from the origin with a velocity of 30
1 answer:
For this we will use kinematic equations.
We need the time of flight to compute the range.
With the given information, the most useful formula is:
Δy=v0yt−g2t2
Because our equation is taking only vertical motion into account,
v0y=30sin(45)
Because we are looking for the range of the object,
Δy=0
This leaves us with only one unknown: t
0=30sin(45)t−g2t2
g2t2=30sin(45)t
g2t=30sin(45)
t=60gsin(45)
For horizontal distance, the formula we need is:
Δx=v0xt
Because we are taking into account the horizontal range,
v0x=30cos(45)
In substituting our derived values into the equation we can see that:
Δx=30cos(45)∗60gsin(45)
Range=30cos(45)∗60gsin(45)
You might be interested in
The product of expressions or numbers is calculated by multiplying the expressions or numbers.
- The incorrect value in the table is
- The value that should have been written is
From the table (see attachment), the incorrect product is given as:
The above product is incorrect.
This is so because when -y is multiplied by 2x, the result is
So, the correct expression is:
Read more about products at:
