# A projectile is shot from the ground at a velocity of #86 m/s# at an angle of #pi/3#. How long will it take for the projectile to land?

Time = 14.5 s

We use the vertical direction to determine the time in the air.

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The time of flight for the projectile is approximately 8.96 seconds.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- In a water- tank test involving the launching of a small model boat, the model's initial horizontal velocity is 6 m/s and its horizontal acceleration varies linearly from -12 m/s2 at t=0 to -2 m/s2 at t=t1 and then remains equal to -2 m/s2 until t=1.4 ?
- If an object is dropped, how fast will it be moving after falling #1 m#?
- An object has a mass of #4 kg#. The object's kinetic energy uniformly changes from #96 KJ# to # 280 KJ# over #t in [0, 12 s]#. What is the average speed of the object?
- An object travels North at #1 m/s# for #3 s# and then travels South at #2 m/s# for #4 s#. What are the object's average speed and velocity?
- What is the average speed of an object that is still at #t=0# and accelerates at a rate of #a(t) = t/4+2# from #t in [0, 6]#?

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