Seudónimo Seudónimo

16-09-2021
Physics

contestada

30 POINTS
A cannonball is shot from a cannon at a launch angle of 63o and an initial velocity of 147 m/s.The gravitational acceleration is −9.8 m/s2. Assuming NO air resistance, how long will it take the cannonball to reach the peak of its trajectory?

Question 5 options:

9.8 s

13.4 s

40.2 s

26.7 s

Respuesta :

ravikirang118 ravikirang118

16-09-2021

Answer:

13.4s

Explanation:

t = usinx/g. (X= angle , u= initial velocity)

= (147×sin63)/9.8

=13.4

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