Question

Jackson throws a ball with a speed of 14 m/s whichfollows the curveh = - 5t2+ 14t + 3.

Where “h” represents height in meters and time “t” in

seconds

12.1 What is the height of the ball initially ?

(a) 12m (b) 13 m (c) 3m (d) - 3 m

12.2 What is the height of the ball after 3 sec.?

(a) 3m (b) 12 m (c) 13 m (d) 0 m

12.3 Find the possible values of ’t’ when the ball touches the ground.

12.4 Can the value of’ t’ be negative when the ball touches the ground?

12.5 Findthe maximum height attained by the ball.​

Answer 1

Answer:

1)12m I think this is very useful to you guys