A motorboat traveling on a straight course slows uniformly from 70 km/h to 30 km/h in a distance of 60 m .
What is the magnitude of the boat’s acceleration?
A motorboat traveling on a straight course slows uniformly from 70 km/h to 30 km/h in...
A car traveling 70 km/h slows down at a constant 0.47 m/s2 just by "letting up on the gas." Calculate the distance it travels during the fifth second. Express your answer to two significant figures and include the appropriate units.
motorboat traveling with the current went 70 mi in 5 h. Traveling against the current, it took 7 h to travel the same distance. Find the rate of the boat in calm water and the rate of the current.
A boy is traveling 30 m/s on a scooter. He slows uniformly to a speed of 10 m/s in 5.0 seconds. What is the scooter?s acceleration?
An automobile traveling at 13.0 km/h along a straight, level road accelerates to 58.0 km/h in 5.80 s . What is the magnitude of the auto’s average acceleration?
An automobile traveling at 15.0 km/h along a straight, level road accelerates to 65.0 km/h in 5.40 s . What is the magnitude of the auto’s average acceleration?
A boat is traveling upstream at 11 km/h with respect to the water of a river. The water is flowing at 9.0 km/h with respect to the ground. What are the (a) magnitude and (b) direction of the boat’s velocity with respect to the ground? A child on the boat walks from front to rear at 5.0 km/h with respect to the boat.What are the (c) magnitude and (d) direction of the child’s velocity with respect to the ground?
12-7. A bicyclist starts from rest and after traveling along a straight path a distance of 20 m reaches a speed of 30 km/h. Determine his acceleration if it is constant. Also, how long does it take to reach the speed of 30 km/h?
An initially motionless test car is accelerated uniformly to 105 km/h in 8.03 seconds before striking a simulated deer. The car is in contact with the faux fawn for 0.455 seconds, after which the car is measured to be traveling at 87.5 km/h. What is the magnitude of the acceleration of the car before the collision? Number m/s What is the magnitude of the average acceleration of the car during the collision? Number m/s What is the magnitude of the...
A train slows down as it rounds a sharp horizontal turn, going from 88.0 km/h to 56.0 km/h in the 13.0 s that it takes to round the bend. The radius of the curve is 160 m. Compute the acceleration (both magnitude and direction) at the moment the train speed reaches 56.0 km/h. [Assume the train continues to slow down at this time at the same rate.]
A rolling wheel of diameter of 68 cm slows down uniformly from 8.4 m/s to rest over a distance of 115 m. What is the magnitude of its angular acceleration if there was no slipping?