Question

L

第七題的a 不太懂題目意思 有人可以幫幫忙嗎

肌(史各3                                                       。 和

2 IFig. 2-16, an electron with an ”Nonaccclcratng AcceleraU
initial_velocity uo三3.70x 105m/S      Tegion        region
centersaregionoflength工三2.30 cm

where it is electrically accelerated-

Tt emerges With 三和40x107m/S.

What is its acceleration。assumed    Path 5f
constant?                                  electron
3 A driver increases the car speed

ata cons     ate_from 15 km/h to

4人0一     人

 

 

Figure 2-16 Problem 2

 

(3) How mucn user
the vehicle travelfrom Start to Stop:

hen
ded toward each other along a track W

10”Two trains are heai      (
the conductors suddenly notice
each other. Figure 2-18 glves
their velocities 35 functions
oftime f as the conductorS Slow
the trains. The figure's vertical
scaling is Set by 人三 60 m/s. The

slowing processes  begin when
the trains are 320 m apart. What          Figure 2-18  Problem 10.

is their separation when both
trains have stopped?

 

時

宣       一snrnnnrlevelat

 

34 A _ rock climber acci-
dentally allows a piton to fall
freely from ahigh point on the
ITock wall to the valley below
him at time /==0. Then, after
a 全Dort delay,his climbing
partner, whois15mhigheron

Answer 1

shen

(a)質點在第5秒時的座標為何?