1.)What is the velocity of a projectile at the highest point of its trajectory ?
ID: 1317757 • Letter: 1
Question
1.)What is the velocity of a projectile at the highest point of its trajectory ?
A.Always horizontal component of launching velocity
B.Always launching velocity
C.Always vertical component of launching velocity
D.Always zero
2.)How a projectile should be launched in order to reach the maximum height ?(degrees)
3)You suppose to plot a graph of "Range" vs. "Launching angle". What kind of conclusion do you expect to draw from this graph ?
4)When the speed of a projectile is zero ?
A.Always at the highest point of trajectory
B.At launch
C.At landing
D.After landing
E.At the highest point of its trajectory at vertical launch
F.D and E
G.A and D
5)What vector of normal acceleration does to the velocity of a projectile ?
1.)What is the velocity of a projectile at the highest point of its trajectory ?
A.Always horizontal component of launching velocity
B.Always launching velocity
C.Always vertical component of launching velocity
D.Always zero
2.)How a projectile should be launched in order to reach the maximum height ?(degrees)
3)You suppose to plot a graph of "Range" vs. "Launching angle". What kind of conclusion do you expect to draw from this graph ?
4)When the speed of a projectile is zero ?
A.Always at the highest point of trajectory
B.At launch
C.At landing
D.After landing
E.At the highest point of its trajectory at vertical launch
F.D and E
G.A and D
5)What vector of normal acceleration does to the velocity of a projectile ?
Explanation / Answer
1)the velocity of a projectile at the highest point of its trajectory is
A.Always horizontal component of launching velocity
2)A projectile should be launched with an angle of 450 in order to reach the maximum height.
3)from the plot of a graph of "Range" vs. "Launching angle" we want to find the variation of range with the variation of launching angle and also the launching angle to get the maximium range.
4)the speed of a projectile is zero
ans is F)D and E(After landing and At the highest point of its trajectory at vertical launch)
5) The vector of normal acceleration does not have any impact on the velocity of a projectile.as the component of a normal vector to the direction to which it is normal is zero.
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