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notsponge [240]
2 years ago
12

Grrr i don't have much time, help please T^T

Physics
2 answers:
mart [117]2 years ago
4 0

Answer:

2. ( b ) zero

3. ( c ) 10 s

4. Uniform then decreasing

Explanation:

2.

Since the motion is uniform, initial and final velocity will be 0, hence acceleration will be zero.

3.

Initial velocity ( u ) = 5 m/s

Final velocity ( v ) = 35 m/s

Acceleration ( a ) 3 m/s^2

To find : Time ( t )

Formula : -

t = v - u / a

 = 35 - 5 / 3

 = 30 / 3

t = 10 s

alekssr [168]2 years ago
4 0

Answer:

See below ~

Explanation:

<u>Q2</u>

The uniform circular motion in the movement of object in a circular path with fixed and perpendicular on the direction of the motion acceleration.

  • d

<u>Q3</u>

  • Substitute the values in : <u>v = u + at</u>
  • 35 = 5 + 3t
  • 3t = 30
  • t = 10s (c)

<u>Q4</u>

The vertical component for a projectile by acute angle on the horizontal axis changes from decreasing then increasing velocity.

  • d
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The complete question is shown on the first uploaded image

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The velocity is   v =0.333 \  m/s in positive x -direction

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From the question we are told that

The distance from the house to truck is  D =  20 m

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