Mathematics, 02.02.2021 02:00 shedan1794
A dart fired vertically upward strikes the ground after 6 seconds. If the air resistance is negligible and the gravitational acceleration is 32 ft./s2, find the initial velocity of the dart.
A.
76 ft. per second
B.
80 ft. per second
C.
91 ft. per second
D.
96 ft. per second
I think its 96
a(t)=-32
v(t)=-32t+C
It should spend equal time going up as coming down which means that after 3 seconds it should have a velocity of 0. Plugging that in and solving for C gets 96, which would translate to 96 ft. per second for the initial velocity.
Is this correct
Answers: 3
Mathematics, 21.06.2019 18:30, jorozco3209
Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?
Answers: 1
Mathematics, 22.06.2019 00:00, camila9022
Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read
Answers: 3
Mathematics, 22.06.2019 02:50, MJyoungboy
Which graph shows the solution set of x^2+4-12x/> 0
Answers: 2
A dart fired vertically upward strikes the ground after 6 seconds. If the air resistance is negligib...
Mathematics, 19.02.2021 22:50
Mathematics, 19.02.2021 22:50
Mathematics, 19.02.2021 22:50
Mathematics, 19.02.2021 22:50
Social Studies, 19.02.2021 22:50