How far does a car travel in 4 s if its initial velocity is 2 m/s and its acceleration is 2 m/s2 in the forward direction? CHoices: 48 m 36 m 24 m 14 m 12 m Show solution
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How far does a car travel in 4 s if its initial velocity is 2 m/s and its acceleration is 2 m/s2 in
the forward direction?
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- What is the displacement of the object from 2 to 7 seconds? Position (m) O NON A 0005 10 O O 5 m -6 O 12 m - 12 m - 8 m 0m O 8 m -5m Position vs Time Time (s) O 10Problem 5. An object is moving with an initial position of 28m from the origin with aninitial velocity of −4m/s and constant acceleration of 8m/s2. (1) How fast is the bodymoving after 2s? (2) What is its position 3s after the start? (3) When will it be 36m fromthe origin?A car starts from rest and accelerates at a steady 0.6 m/s². How far does it travel in the first 30.00 s? 27 m O 9 m O 54 m 270 m
- A motorboat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0 m/s² for 8.0 s. How far does the boat travel during this time?Problem 5. An object is moving with an initial position of 28m from the origin with an initial velocity of -4m/s and constant acceleration of 8m/s². (1) How fast is the body moving after 2s? (2) What is its position 3s after the start? (3) When will it be 36m from the origin?An object has an initial velocity of 15 m/s. How long must it accelerate at a constant rate of 3 m/s2 before its final velocity is equal to twice its initial velocity?
- The graph of an object's velocity vs time is given. How far has it gone after the first 2 seconds if vo = 2.5 m/s? - t (s) 2 6 O 10 m O 20 m O 5m O OmThe pendulum of a cuckoo clock consists of a slender rod on which an aesthetically designed mass slides. If the clock gains time, should the mass be moved closer to or farther away from the support to correct the tuning? Derive the differential equation of the said system.What is the initial velocity of a jeep uniformly accelerated at the rate of 0.65m/s² so that it travels 0.95 km in 20 seconds?
- If a car comes to a full stop over a distance of 484 m using a constant acceleration of -8.0 m/s2, then what was its initial velocity?A car accelerates from 6.0 m/s to 28 m/s at a rate of 3.0 m/s2. How far does it travel while accelerating? 0 375 m 125 m O213 m 75 mA soft tennis ball is dropped onto a hard floor from a height of 1.70 m and rebounds to a height of 1.26 m. (Assume that the positive direction is upward.) (a) Calculate its velocity (in m/s) just before it strikes the floor. m/s (b) Calculate its velocity (in m/s) just after it leaves the floor on its way back up. m/s (c) Calculate its acceleration (in m/s2) during contact with the floor if that contact lasts 3.50 ms. m/s2 (d) How much (in m) did the ball compress during its collision with the floor, assuming the floor is absolutely rigid? m