c. What is the object's displacement 2.50 seconds after being thrown?

4. A robotic vehicle is exploring the surface of Mars. The robot, which is represented as a point, has x - and y-coordinates that vary with time: x = (3 − 2t); y = (-t² + 4t³) where x and y are in meters and t is in seconds. a. Find the average velocity of the robot between t = 0s and t = 2s. b. Find the average acceleration of the robot between t = 0s and t = 2s. c. At what time the acceleration of the robot will be zero. a. Vavg= -21 + 14ĵ m/s b. davg = 22ĵ C. m s² 2 t = = = 0.083 s 24

HOW?An automobile travels on straight road for 39km at 24km/h. If then continues in the same direction for another 39 km at 48km/h.  a. What is the average velocity of the car during his 78 km trip? (Assume that it moves positive direction) b. What is the average speed?

1. The acceleration of a car is given by a(t) = A – Bt + Ct² , where A = 1.0 m/s², B = 0.5 m/s³, C = 2.0 m/s“. The car is at rest at the origin at time t= 0. Find its position and velocity as a function of time. b. Sketch its position, velocity, and acceleration. a.

For the first 1.0 second Pedro travels at 40m/ s but suddenly slows to 20 m/s for the next 4.0 seconds. a. Determine Pedro average speed b. The speed limit is 30m/s. Will he get a ticket?

2. A jet plane has a takeoff speed of vtakeoff = 73 m/s and can move along the runway at an average acceleration of 2.4 m/s2. The runway is 1.2 km. Write out the 3 Kinetic equations. a. b. Write out the values of initial position, initial velocity, and acceleration. How many seconds will it take for the plane to reach takeoff speed? с. d. How far will the plane have to travel to get to takeoff speed? will the plane be able to get to take off before it gets to the end of the runway? е.

You are driving down a straight road at night in your McLaren MCL34 Formula 1 racecar at an entirely illegal speed of 98 m/s when Bambi and Thumper jump onto the road in front of you. Because you were texting while driving (also illegal), your reaction time is a rather slow; 1.3 seconds before your foot touches the brake. How far did you travel during this time? O a. 98 m O b. 127 m O c. 101 m O d. 134 m O e. 112 m Clear my choice

There is a freefalling object starting at rest.a.Exactly 1.8s later what will be its velocity?b.What is the displacement fallen after 1.8s later? C.If vertical and horizontal velocity components of a projectile are 127 m/s, what is the resultant velocity and direction?

A dolphin in an aquatic show jumps straight up out of the water at a velocity of 15 m/s.   A: How long is the dolphin in the air in seconds? Neglect any effects due to his size or orientation.

At the instant the traffic light turns green, a car starts from rest with a constant acceleration of 3.0 m/s2 . At that instant, a truck travelling with a constant speed of 36 km/h overtakes and passes the car. a. How long does it take the car to overtake the truck?  b. How fast will the car be travelling when it overtakes the truck.