lookoutastroboy
Member
- Joined
- Mar 15, 2008
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Hey guys,
I've got these 2 physics questions that I cannot do - if you know how to solve them, could you please post your full solution if possible =) Here goes -
1. A car 4.0 m long came up behind a semi-trailer 20.0m long travelling at a steady 72km/hr. After travelling behind the semi-trailer for some time, the driver of the car decided to overtake. If the car pulled out from behind the semi-trailer with the front of the car 10.0 m behind the rear of the trailer and accelerated at 3.5 ms^-2 until the rear of the car was 10.0 m in front of the truck, how far would the car travel and how long would it take?
2. A plane is flying parallel to the ground, with a velocity of 750 km h^-1, and at an altitude of 4.90 km. A lump of lead is dropped from the plane. How long before the lead reaches the ground (slightly easier, i think)
Thanks in advance and good luck,
lookoutastroboy
I've got these 2 physics questions that I cannot do - if you know how to solve them, could you please post your full solution if possible =) Here goes -
1. A car 4.0 m long came up behind a semi-trailer 20.0m long travelling at a steady 72km/hr. After travelling behind the semi-trailer for some time, the driver of the car decided to overtake. If the car pulled out from behind the semi-trailer with the front of the car 10.0 m behind the rear of the trailer and accelerated at 3.5 ms^-2 until the rear of the car was 10.0 m in front of the truck, how far would the car travel and how long would it take?
2. A plane is flying parallel to the ground, with a velocity of 750 km h^-1, and at an altitude of 4.90 km. A lump of lead is dropped from the plane. How long before the lead reaches the ground (slightly easier, i think)
Thanks in advance and good luck,
lookoutastroboy
