3. Determine the velocity and acceleration of progress with the given equation: t2 D = • t + 1 When t=5 seconds.
3. Determine the velocity and acceleration of progress with the given equation: t2 D = • t + 1 When t=5 seconds.
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Transcribed Image Text:II.
Solve the following problems carefully. Write the STEP-BY-STEP solution and
box your final answer.
1. Multiply the Following Vectors using cross Product method. W = † x F
= ( 5i + 3j – 8 k) N
i = (2i – 4j – 5k) m
2. If a particles velocity is given by the expression v(t) = 3.4t³ – 5.4t, What is the
position of the particle after 5 seconds?
3. Determine the velocity and acceleration of progress with the given equation:
t2
D = :
t+1
When t=5 seconds.
4. A particle moves along the x-axis. The function v(t) gives the particle's velocity at
any time t > 0: Assume x to be in meters and t to be in seconds. v(t) = t5 +15t³ +20
Find: a. The velocity of the particle at t = 2s.
b. The acceleration of the particle at t =2s
c. Att=3, is the particle speeding up, slowing down, or neither?
5. You throw a ball with a speed of 30 m/s at an angle of 30° above the horizontal
directly toward a wall. The wall is 25 m from the release point of the ball.
(a) How long does the ball take to reach the wall?
(b) How far above the release point does the ball hit the wall?
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