Question

answer me fast please​

Answer 1

Explanation:

34) a) south

35) During projectile motion, the vertical velocity changes (because of gravity) due to which momentum,kinetic energy also changes only horizontal velocity (as there is no force acting in horizontal direction to change velocity) and acceleration remains constants.

b) acceleration and horizontal velocity

36) ANSWER

the correct answer is B.

the equation of the projectile is

Y=

3

x−

2

gx

2

-------(1)

we know that if a projectile is projected with speed u at angle θ with horizontal.

then, the equation of trajectory of a projectile is:

Y=xtanθ−

2u

2

cos

2

θ

gx

2

--------(2)

comparing both equation(1)&(2)

3

x−

2

gx

2

=tanθx−

2u

2

cos

2

θ

gx

2

tanθ=

3

=tan60

0

So, θ=60

0