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Questions in physics

[Answered] Two men decide to use their cars to pull a truck stuck in mud. They attach ropes, and one pulls with a force of 515 N at an angle of 31° with respect to the direction in which the truck is headed. The other car pulls with a force of 926 N at an angle of 25° with respect to the same direction. What is the net forward force exerted on the truck in the direction it is headed?

[Answered] A boulder on the mythical planet Mongo drops off a cliff and falls from rest 1000 m in 10.0 s. (A) What is the initial speed of the boulder? (B) Determine the acceleration due to gravity on Mongo. Ignore friction.

[Answered] When striking, the pike, a predatory fish, can accelerate from rest to a speed of [tex]4.0 \, \text{m/s}[/tex] in [tex]0.11 \, \text{s}[/tex]. How far does the pike move during its strike? (Note: Part A's answer is [tex]36.36\ldots[/tex] repeating)

[Answered] A ball is dropped from the top of an 84-meter-high building. What speed does the ball have after falling for 3.6 seconds?

[Answered] What is the difference between weight and mass? Please provide a detailed explanation.

[Answered] Determine a submarine's acceleration if its initial velocity is 9.0 m/s and it travels 1.54 km in 2 min.

[Answered] In 10 seconds, a car accelerates from 4 m/s to 60 m/s. How fast was the car going before it accelerated?

[Answered] How does electromagnetism affect people in the world?

[Answered] Find the distance and displacement for this question: Jamie spins around 5 times without moving in any direction.

[Answered] A hot air balloon is rising upward with a constant speed of 2.50 m/s. When the balloon is 3.0 m above the ground, the balloonist drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?