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ataglance05
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need help on projectile!
A projectile is fired at an angle of 38 degrees with respect to the x-axis and with an initial velocity in the x direction of 3.3 m/sec. (gravity=10m/sec^2)
a)whats the initial velocity of the projectile?
a) i think Vy=Vi(sin38 degrees)
and a^2+b^2=c^2
I first want to get the Vy by using: Vy=Vi(sin theta)
so, Vy=3.3m/sec(sin 38 degrees)
Vy=2.03 m/sec
now, (2.03)^2 + (3.3)^2= r^2
so r or the initial velocity of the projectile =3.87 m/s ?
Homework Statement
A projectile is fired at an angle of 38 degrees with respect to the x-axis and with an initial velocity in the x direction of 3.3 m/sec. (gravity=10m/sec^2)
a)whats the initial velocity of the projectile?
Homework Equations
a) i think Vy=Vi(sin38 degrees)
and a^2+b^2=c^2
The Attempt at a Solution
I first want to get the Vy by using: Vy=Vi(sin theta)
so, Vy=3.3m/sec(sin 38 degrees)
Vy=2.03 m/sec
now, (2.03)^2 + (3.3)^2= r^2
so r or the initial velocity of the projectile =3.87 m/s ?