The trajectory of a projectile near the surface of the earth is given as y = 2x − 9x2. If it were launched at an angle 
0 with speed v0 then (g = 10 ms–2):
a)
0 = 
and v0 = 
m
b)
0 = 
and v0 = 
m
c)
0 = 
and v0 = 
m
d)
0 = 
and v0 = 
m
0 with speed v0 then (g = 10 ms–2):a)
0 = and v0 = m
b)
0 = and v0 = m
c)
0 = and v0 = m
d)
0 = and v0 = m
Question ID - 51465 | SaraNextGen Top Answer The trajectory of a projectile near the surface of the earth is given as y = 2x − 9x2. If it were launched at an angle 0 with speed v0 then (g = 10 ms–2):
a)
0 = and v0 = m
b)
0 = and v0 = m
c)
0 = and v0 = m
d)
0 = and v0 = m
The trajectory of a projectile near the surface of the earth is given as y = 2x − 9x2. If it were launched at an angle 0 with speed v0 then (g = 10 ms–2):
|
a) |
|
b) |
|
|
c) |
|
d) |
|
1 Answer
127 votes
Answer Key / Explanation : (d) -
y = 2x − 9x2
Comparing it with equation of trajectory
y = x tan
tan
= 2
And 9 = 
⇒ v0 = 
m/s
127 votes
Answer Link
127