A fireworks shell is accelerated from rest to a velocity of 58.0 m/s over a distance of 0.260 m. How long (in s) did the acceleration last?   (s)   Calculate the acceleration (in m/s2). (Enter the magnitude.)

NASA has fired a rocket straight up into the air from ground level with an unknown initial velocity. It reaches a maximum height of 164,000 feet. This happened in Cape Canaveral therefore the rocket is under the acceleration of Earth's gavity in which we all know is -32 ft/sec/sec.                                           Please round your answers to two decimal places. a). Find the time it takes for the rocket to reach maximum height. b). find the initial velocity necessary to reach that height.

A child on a sled moving at 5 m/s, reaches the bottom of the hill and simply glides along, slowing to a reduced speed of 3 m/s after gliding for 16 m. What is the magnitude of their acceleration (in m/s2) as they slow, rounded to one decimal place?

A special racing car starts from rest and accelerates in a straight line with a constant acceleration of 5.8 m/s². After 376 metres, it deploys a parachute which results in a deceleration of kv? where v is the speed of the car in m/s and k is a constant (has a unit of 1/m). If the car's speed slowed down to 37 km/hr 7.5 seconds after the parachute was deployed, determine the constant k and then give your answer to Z = 1000*|k| rounded to two decimal places. Note that |k| means the absolute value of k.

A motorcycle officer hidden at an intersection observes a car driven by an oblivious driver who ignores a stop sign and continues through the intersection at a constant speed. The police officer takes off in pursuit 2.0s after the car has passed the stop sign. She accelerates at 4.2 m/s^2 until her speed is 110 km/h until she catches the car. The car is 1.4 km from the intersection. a) How long did it take for the officer to catch the car? b) How fast was the car traveling?

A bird flies 3.50 km [East] and then immediately turns around and flies 7.50 km [West]. The bird's average speed for the entire motion is 11.0 km/h. What is the bird's average velocity. Give your answer in km/h to 2 decimal places. A velocity that is west should be treated as negative and a negative sign should be included in your answer. A velocity that is east should be treated as positive but no sign should be included in the answer. Do not include units in your answer.

A speeding driver noticed a police car parked about 433 m in from of him on the side of the road and reduced his speed at a constant rate for a duration of 10.7 seconds as he drove past the police car, at the legal speed of 33 m/s. What was the car's acceleration (include a negative sign in your answer)?