Question

find the range of the ball when projected with a velocity of 29.4 m/s just passed over a pole of height 4.9 m ​

Answer 1

Answer:

first by using height and velocity calculate sin theta of projectile

h=u²sin²theta/2g

4.9=29.4²sin²theta/2×10

sin²theta=0.113

theta=20

now,

R=u²sin2theta/g

R=29.4²×sin40/10

R=55.55m

so range is 55.55m ... hope it helps and plzz mark me as brainliest

Answer 2

Answer:

Aforce of 1200 n acting on a stone by means of a rope slides the stonethrough a distance of 10 m in a direction inclined at 60° to the force. thework done by the force is * 103 joule.