a car starts from rest and accelerates at 3m/s2 until it hits 30m/s and then coasts...

a car starts from rest and accelerates at 3m/s² until it hits 30m/s and then coasts at this constant velocity. How much time does it take to complete a 450m trip?

can someone help please

Expert Solution

genius_generous answered 1 year ago

Starting from rest, a car accelerates at 3m/s2 until it reaches a constant speed of 15m/s....

Starting from rest, a car accelerates at 3m/s2 until it reaches a constant speed of 15m/s. After traveling at 15m/s for 12s, the brakes are applied so that the car comes to a stop, taking 3 s to do so. (Please show formulas) A. Prepare visual overview of the situation. Your overview must include a pictorial representation that defines the coordinate system, a motion diagram, and an annotated velocity vs. time graph. B.What total distance did the car travel? C....

A train starts from rest and accelerates uniformly with a = 2 m/s2 until it has...

A train starts from rest and accelerates uniformly with a = 2 m/s2 until it has traveled 1 km. The train then moves at a constant velocity of 20 m/s for one hour. The train then slows down uniformly at 0.05 m/s2, until it stops. Calculate: The maximum speed of the train The total distance traveled by train.

An object starts from rest and accelerates at a rate of 2 rad/s2 until it reaches...

An object starts from rest and accelerates at a rate of 2 rad/s2 until it reaches an angular speed of 23 rad/s. The object then accelerates at a constant rate of a rad/s2 until it stops. If the angular displacement is 193 rad, what is the angular acceleration a (in rad/s2)?

A car starts from rest at a stop sign. It accelerates at 5.56 m/s2 for 6.56...

A car starts from rest at a stop sign. It accelerates at 5.56 m/s2 for 6.56 seconds, coasts for 3.6 s, and then slows down at a rate of 3.93 m/s2 for the next stop sign. How far apart are the stop signs?

1) A car accelerates at 4 m /s / s. Assuming the car starts from rest,...

1) A car accelerates at 4 m /s / s. Assuming the car starts from rest, how far will it travel in 10 s? 2) An object falls freely from rest on a planet where the acceleration due to gravity is twice that of in Earth. Find the speed of the object after 5 second? 3) It takes 8 seconds for a stone to fall to the bottom of a mine shaft. How deep is the shaft? 4) A bag...

a). A prototype car starts from rest and accelerates at a constant rate to 30 m/s...

a). A prototype car starts from rest and accelerates at a constant rate to 30 m/s in 5.6 seconds. How much distance did the car travel during the 5.6-second accelerated motion? b). A car was parked on the side of a hillside road at the top of a hill. Unbeknown to the owner, its parking brake failed and tremors from nearby construction set it in motion with negligible initial speed down the hill. Assume the acceleration was constant down the...

a). A prototype car starts from rest and accelerates at a constant rate to 60 m/s...

a). A prototype car starts from rest and accelerates at a constant rate to 60 m/s in 4.1 seconds. How much distance did the car travel during the 4.1-second accelerated motion? b). A single-engine air plain starts its engine at one end of the runway. It accelerates at a constant rate and takes off at 36 m/s after 29 seconds on the runway, just as it is running out of runway. How long is the runway? c). An object is...

An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a...

An electric vehicle starts from rest and accelerates at a rate of 2.4 m/s2 in a straight line until it reaches a speed of 27 m/s. The vehicle then slows at a constant rate of 1.4 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle move from start to stop?

An electric vehicle starts from rest and accelerates at a rate of 2.1 m/s2 in a...

An electric vehicle starts from rest and accelerates at a rate of 2.1 m/s2 in a straight line until it reaches a speed of 17 m/s. The vehicle then slows at a constant rate of 1.1 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle move from start to stop? solve both a b show units

A car starts from rest at a stop sign. It accelerates at 4.4 m/s^2 for 6.9...

A car starts from rest at a stop sign. It accelerates at 4.4 m/s^2 for 6.9 s, coasts for 2.3 s, and then slows down at a rate of 3.4 m/s^2 for the next stop sign. How far apart are the stop signs?

Question