The following is a graph a particle's position vs. time. What is the particle's position at t = 3.00s ? a. x(t), b. What was the particle's instantaneous velocity at t = 3.00s ? t time(s) 2 4 С. What was the particle's average velocity between t = Os and t = 4.00s ? d. What was the instantaneous acceleration at t = 3.00s ? position(m)

A ball is thrown straight up. What is the velocity and  acceleration of the ball at the higest point (peak)?   A. velocity = 0m/s and acceration = 9.8 m/s2 down.   B. velocity = 0 m/s  amd acceleration = 0 m/s2   C. velocity = 0 m/s and acceleration = 9.8 m/s2 up   D. velocity = 9.8 m/s up and acceleration = 0 m/s2

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

Given a particle that moves according to r(t) = (t2, t+,t-) t3 write the acceleration aa of the particle in the form a = aTT+aNN. at t = 0+ Select one: a. a(0) = 2T -N b. a(0) = 2N C. a(0) = 2T d. a(0) = T+N e. a(0) = N

A rabbit runs across a parking lot on which a set of coordinate axis has been drawn. The coordinates of the rabbit’s position as a function of time t are given by:                            x = -0.3t2 + 5t + 28  and  y = 0.22t2 - 8t + 30 with t in seconds and x and y in meters. What is the velocity at t= 10 sec?      A. 0.6 i + 0.4 j   B. -0.2i +1.6j +30   C. -i - 3.6 j   D. 4i + 2j

3. A quarterback throws a football with initial velocity components Voy= 10.0 m/s (upward) and Vax = 19.0 m/s (down the field). It is caught at the same height it is thrown from. a. How long does it take for the football to reach its maximum height? b. How high is this point above where the ball was released? c. How much time, after it was thrown, elapses before the ball is caught? Compare this time to what you found in part (a). d. How far away from the quarterback is the ball when it is caught? 4. Repeat question 3, but have the initial speed of the ball be 28.0 m/s and the initial angle be 38.0° up from horizontal.

Sketch a velocity-time graph for Donna’s Mercedes which accelerated uniformly for 0 mi/hr to 70. mi/hr in 5.0 seconds.   April throws a ball straight up into the air at an initial speed of 30. m/s.

2a. A worker on a rooftop is startled by a snake, scoops it with a shovel and throws it down the building at 16 m/s. What maximum height does the snake attain? Answer: 13.06m Need Help With B &C Plz. b. How much time does the snake take to reach maximum height if initial velocity is 16m/s? c. From the fall of the snake, calculate the height of the building, if the velocity of the snake is 40m/s

A stone is dropped from rest from the top of a high-rise. It takes △t = 2.6 s forit to reach the ground. a. What is the initial velocity, Vi, of the stone in m/s? b. What is the value of the magnitude of acceleration, in m/s^2?? c. Express the final velocity vf of a object travelling with an acceleration a for a time period △t which starts with an initial velocity vi. d. Calculate the magnitude of vf in m/s.e.Express the displacement △y of an object travelling with acceleration a during a time period △t that has an initial velocity vi.