A projectile fired from a gun has initial horizontal and vertical components of

Question

A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 11.5 m/s and 19.6 m/s, respectively. Approximately how long does it take the projectile to reach the highest point in its trajectory? A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 11.5 m/s and 19.6 m/s, respectively. Approximately how long does it take the projectile to reach the highest point in its trajectory? A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 11.5 m/s and 19.6 m/s, respectively. Approximately how long does it take the projectile to reach the highest point in its trajectory?

Explanation / Answer

Solution:

At the highest point :

v(vertical) = 0

Using ; v = u + at

=> 0 = 19.6 + (-g)t

=> t = 19.6/g

=> t = 19.6/9.8

=> t = 2seconds

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