Please help! A Boeing 747 aircraft has a landing speed of 72 m/s , and upon landing it is able to come to a stop in 2, 000m . Assuming constant deceleration , how long would it take for a Boeing 747 to come to a full stop?

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

See the attachment and solve question 5th

Is the number of complete movements of a wave per second.