4. A boy throws a ball upward from the top of a cliff with a speed of 14.7m/s. On the way down it just misses the thrower and fall the ground 49 meters below. Find (i) How long the ball rises? (ii) How high it goes? (iii) How long it is in the air? (iv) with what velocity it strikes the ground. Motion problem no 4. Sindh Textbook Board (stb) problems

4. A boy throws a ball upward from the top of a cliff with a speed of 14.7m/s. On the way down it just misses the thrower and fall the ground 49 meters below. Find (i) How long the ball rises? (ii) How high it goes? (iii) How long it is in the air? (iv) with what velocity it strikes the ground.