Rock Slide

Thanks to the Sikorsky Raider, you are now in Honolulu preparing for your mission in Tajikistan. Based on the information you found in the safe, A.A.K.V.O has been able to locate V.A.L.A.'s base of operations in Baldzhuvon. Your partner has already parachuted into the area and spotted a convoy of trucks getting ready to go into the mountains. These must be the V.A.L.A. poachers!

Your brilliant partner (he really should be the top agent!) has come up with a brilliant plan to trap the convoy on the mountain road on the way to the cliff bears by detonating C4 above the road and creating rock slides ahead of and behind the convoy. But how much C4 should you bring with you? You estimate that you need to move a cube of rock about 4 m on a side about 10 m in the air to create a big enough rock slide. The rock in the area weighs 3 g per cubic cm. The explosive C4 contains about 3.6 million joules of energy per kilogram. How much C4 will you need for the two rock slides?

Hint:

• Work = Force * Distance
• Force = Mass * Acceleration (from Gravity)
• Acceleration from Gravity = 9.8 m/s²