The students use a force sensor and a motion sensor to measure the acceleration of the object when a force is applied. They plot their data on a force-acceleration graph below. What is the mass of the box? Force (N) 2 0 14 4 12 10 8 6 1 2 Force vs. Acceleration 3 4 5 Acceleration (m/s²) 6 8

A physics student, in a stationary elevator, places a 240.0 g mass on an electronic balance. The student hits the elevator button and it begins to move upwards. While the elevator is moving, the student records this information Time = 0 to 3.0 sec the balance reads 278 grams Time = 3.0 - 12 sec the balance reads 240. grams Time = 12.0 to 15.0 sec the balance reads 192 gram How far up (in meters) did the elevator travel? Consider: UP to be (+), DOWN to be (-) and g =9.8 m/s2 .  ROUND YOUR ANSWER TO A WHOLE NUMBER of meters (no decimal places) HINT: This problem requires finding THREE different displacements and adding them up! 2nd HINT:  You will need to (A) use your equations of motion or (B) make a v-t graph to find those displacements!

You are playing a game and you push a cart to give it in. speed. The cart starts at the bottom (zero) of a ramp and after reaching the top of the ramp, the cart travels across a horizontal track w/ friction. The mass of the cart is 44 x 10^-3 kg. The ramp is 56 cm high. The length is 70 cm. What can you infer of the intial speed in (m/s)

(Figure 1) shows a F = 6.4 N force pushing two gliders along an air track. The 170 g spring between the gliders is compressed. Assume the force Facts and the whole system moves in the same direction. The spring does not sag. Figure F A 400 g m B 600 g 1 of 1 Part A How much force does the spring exert on glider A? Express your answer to two significant figures and include the appropriate units. F = Submit Part B F = O Submit Value Request Answer How much force does the spring exert on glider B? Express your answer to two significant figures and include the appropriate units. μA Value Units Request Answer ? Units ?

A commercial airplane is coming in for a landing. Just before it hits the runway it is moving at 76 m/s. The plane has a mass of 20,000 kg. The runway is 1.6km long and, obviously, the airplane needs to be stopped before it reaches the end of the runway. How large is the braking force the airplane needs to stop safely before the end of the runway?

I need help with this problem and an explanation for the solution described below. (University Physics 1: Newton's Laws (Dynamics))

Three cables are used to tie the balloon shown in Figure. Determine the magnitude of the vertical force (P) exerted by the balloon at A, knowing that the tension in cable AD is 1.099 N. y1 = 4.3 m y2 = 2.2 m x1 = 4.4 m x2 = 3.1 m z = 5.8 m

DETAILS PREVIOUS ANSWERS SERPSE10 7.4.P.016. MY NOTES ASK YOUR TEACHER The force acting on a particle is F, = (10x – 17) N, where x is in meters. (a) Make a plot of this force versus x from x = 0 to x = 3.00 m. F (N) F (N) 50 20 40 10 3어 20 0,5 1.0 15 20 2,5 x (m) 30 10 -10 x (m) 3.0 0.5 1.0 1.5 2.0 2.5 F (N) F (N) 0,5 1.0 + x (m) 2,5 30 1아 1.5 2,0 -1어 2,5 x (m) 30 -20 0,5 1,0 15 -30 -10 - 40 -20 - 50 (b) From your graph, find the net work done by this force on the particle as x = 0 to x = 2.55 m. (Include the correct sign.) it moves from Need Help? Read It

Your mass is 94.2 kg, and the sled s mass is 16.1 kg. The sled is moving by itself on the ice at 5.05 m/s. You parachute vertically down onto the sled, and land gently. What is the sled s velocity with you now on it? 0.85 m/s 0.74 m/s 0.44 m/s 0.96 m/s

Problem 5: The force required to compress a non-standard spring varies as the spring is compressed, as shown by the plot of force vs displacement in the figure. The distances in the figure are x = 15 cm, x2 = 45 cm, x3 = 65 cm, and x4 = 95 cm, and the forces are F1 = 140 N and F2 = -55 N. X3 X4 X X