An object with a mass of 5 kg is placed on a smooth flat surface from rest and is accelerating at 5 m/s2 for 4 seconds. Then move at a constant speed for 4 seconds. If the force applied is 20 N, then the distance the object can travel in 4 seconds is... A. 10 m B. 50 m C. 100 m D. 150 m E. 200 m

help solve two part question  A. A roller coaster begins at rest at the top of a 30 m hill. Find the velocity at a point 5 m above the bottom of the hill. B. A roller coaster begins at 6 m/s at the top of a 39 m hill. Find the velocity at a point 4 m above the bottom of the hill.

A stone is thrown straight up from the edge of a roof, 650650 feet above the ground, at a speed of 1616 feet per second.A. Remembering that the acceleration due to gravity is −32ft/sec2−32ft/sec2, how high is the stone 55 seconds later?B. At what time does the stone hit the ground?C. What is the velocity of the stone when it hits the ground?

Hey im stuck on this question You are on the plane neptune and want to determine the acceleration due to gravity, g. You have a stopwatch and a toy gun that can launch a ping pong ball vertically upwards with an initial velocity of 7.5 m/s. Describe, in words, how you would perform an experiment to determine the acceleration due to gravity. Be sure to describe the variables you would measure, the equations you would use and the assumptions you would make. Make sure to include a diagram of the physical situation, label know and unknown quantities with units, coordinate system. Please use grade 12 kinematics and label the variables as v1, v2, a (Acceleration), t (time), d (displacement) Thanks!

how do i solve this problem

A particle moves along the x-axis according to r(t) = 20t - 4t² m. Help on how to format answers: units. a. Determine the instantaneous velocity at each of the following times. At time t = 1s the instantaneous velocity is: At time t = 8s the instantaneous velocity is: b. Determine the instantaneous speed at each of these times. At time t = 1s the instantaneous speed is: At time t = 8s the instantaneous speed is: c. What is the average velocity between t = 1s and t = 8 s? Answer:

A skier starts at the top of a 12º frictionless slope with a speed of 2.5 m/s. Her speed at the bottom is 15 m/s.   Part A What is her acceleration on the slope?        Part B What is the length of the slope?       Part C How long does it take her to reach the bottom?

I’m really just not sure how to type this into my calculator or even attempt to answer this question.

A ballast bag is released from a balloon that is 300 meters above the ground and is rising at 14 m/sec. a) What is the ballast bag’s maximum height above the ground? b) What is it’s velocity 6 seconds after being released? c) When will it reach the ground?

In the lab we saw that we are making the cart move with the help of a battery powered fan attached on the cart. Suppose the track is nearly frictionless and very long. We turn on the fan, let it run for sometime, then turn it off. We see that the cart O gradually slows down and comes to a stop. O gradually slows down and continues with constant velocity. O just continues with constant velocity O slows down, stops, then starts going in the opposite direction.