A roller coaster cart of mass 50 kg is placed at Point 1 at a height 4.0 m above the ground as shown above, and is released from rest. It slides with negligible friction down the track, around the inside of the loop of radius 1.5 m and continues along the rest of the track.

a sonic boom is a loud boom that breaks the sound barrier

explanation:

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.