hi,
i have two questions i need the
complete solutions with their final results. is there anyonecouldhelp
me, i would appreciate that. The answer of question 1 is 11m/s andthe answer of question 2 is 199 m/s , but i don'tknow the completesolution.
1)
A girl and her bicycle have a total mass of 40 kg. At the top ofthehill her speed is 5.0 m/s. The hill is 10 m high and 100 mlong. Ifthe force of friction as she rides down the hill is 20 N,what isher speed at the bottom?
2)
The ballistic pendulum is a device used to measure the speed ofafast-moving projectile such as a bullet. the bullet is fired intoalarge block of wood suspended from some light wires. the bulletisstopped by the block, and the entire system swings up to aheight h= 5 cm. The mass of the bullet, m1, is 5.00 g, the mass ofthependulum wood block, m2, is 1.00 kg. Find the initial speed ofthebullet, v1i?
thank you in advance
hi,
i have two questions i need the
complete solutions with their final results. is there anyonecouldhelp
me, i would appreciate that. The answer of question 1 is 11m/s andthe answer of question 2 is 199 m/s , but i don'tknow the completesolution.
1)
A girl and her bicycle have a total mass of 40 kg. At the top ofthehill her speed is 5.0 m/s. The hill is 10 m high and 100 mlong. Ifthe force of friction as she rides down the hill is 20 N,what isher speed at the bottom?
2)
The ballistic pendulum is a device used to measure the speed ofafast-moving projectile such as a bullet. the bullet is fired intoalarge block of wood suspended from some light wires. the bulletisstopped by the block, and the entire system swings up to aheight h= 5 cm. The mass of the bullet, m1, is 5.00 g, the mass ofthependulum wood block, m2, is 1.00 kg. Find the initial speed ofthebullet, v1i?
thank you in advance
