2. A body is thrown vertically upward with a speed of 100 m/s. The time taken to be

the earth is

a. 10 sec

b. 20 sec

c. 15 sec

d. 5 sec

Question

Physics

Dominic Fox

21 April, 04:35

2. A body is thrown vertically upward with a speed of 100 m/s. The time taken to be

the earth is

a. 10 sec

b. 20 sec

c. 15 sec

d. 5 sec

+5

Answers (1)

Know the Answer?

Abbigail · Answer 1

b. 20 sec

Explanation:

y = y₀ + v₀ t + ½ g t²

0 = 0 + (100) t + ½ (-10) t²

0 = 100t - 5t²

0 = t (100 - 5t)

t = 0, t = 20

The body lands after 20 seconds.

2. A body is thrown vertically upward with a speed of 100 m/s. The time taken to bethe earth isa. 10 secb. 20 secc. 15 secd. 5 sec

2. A body is thrown vertically upward with a speed of 100 m/s. The time taken to be

the earth is

a. 10 sec

b. 20 sec

c. 15 sec

d. 5 sec