大师作文网a-level物理问题-
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a-level物理问题-
a vehicle moving with a uniform acceleration of 2m/s2(小标“2”) has a velocity of 4m/s at a certain time.What will its velocity be?
questionA:1s later?
B 5s later?
a vehicle moving with a uniform acceleration of 2m/s2(小标“2”) has a velocity of 4m/s at a certain time.What will its velocity be?
questionA:1s later?
B 5s later?
for question A:the answer is v=u+at
v=4+2*1=6 m/s
B:the answer is v=u+at
v=4+2*5=14 m/s
these is a simple questions for kinematics,you should pay attention to the formula for the uniform motion.
v=4+2*1=6 m/s
B:the answer is v=u+at
v=4+2*5=14 m/s
these is a simple questions for kinematics,you should pay attention to the formula for the uniform motion.