At time t = 0 seconds, a ball is thrown vertically upward from the top of a building that is 76 metres high. The height of the ball above ground t seconds later is given by h = 76 + 39.2t - 9.8 m (until the ball hits the ground). What is the maximum height reached by the ball?
A) 120.6 m
B) 115.2 m
C) 112.3 m
D) 98.7 m
E) 138.3 m

Question

At time t = 0 seconds, a ball is thrown vertically upward from the top of a building that is 76 metres high. The height of the ball above ground t seconds later is given by h = 76 + 39.2t - 9.8  m (until the ball hits the ground). What is the maximum height reached by the ball?
A) 120.6 m 
B) 115.2 m 
C) 112.3 m 
D) 98.7 m 
E) 138.3 m

Quizplus · Accepted Answer

The Answer of At time t = 0 seconds, a ball is thrown vertically upward from the top of a building that is 76 metres high. The height of the ball above ground t seconds later is given by h = 76 + 39.2t - 9.8  m (until the ball hits the ground). What is the maximum height reached by the ball?
A) 120.6 m 
B) 115.2 m 
C) 112.3 m 
D) 98.7 m 
E) 138.3 m

At Time T = 0 Seconds, a Ball Is Thrown