Here are the questions if you know how to work it out please show what you can and the answer. Thanks!1. A 1,000 newton skydiver jumps from an altitude of 3000 meters. What is the total work performed on the skydiver?2. A bulldozer performs 80,000 joules of work pushing dirt a distance of 20meters. What is the force of the dirt?3. What is the force on a 1 kg ball that is falling freely due to the pull of gravity?4. A mass of 1 kg is acted upon by a force of 2 newtons. What acceleration does the mass acquire?5. Find the distance an object will move if it travels at a speed of 4 meters/second for 10 seconds. 6. Find the time it would take a vehicle moving north at 30 km/hr to travel 27 kilometers.
1) Work is force x distance (if they are parallel, if not you have to apply vector calculus) so it'd be 1,000,000 joules 2) again, if W = F*d, then F is W/d which would be -4,000 N (negative because it opposes the bulldozer's force, which is the one which performs the work) 3) F = mass*acceleration, so F = m*g (g is the gravitational pull, or 9,8 m/s^2) so 9,8 N 4) 2 m/s^2, by the same formula 5) distance = velocity*time, so it's 40 metres 6) by the same formula, 54 minutes.
