A positively charged particle moving with a velocity \(V=\vec{Vx_{i}}+\vec{Vy_{j}}\) enters a region with a uniform magnetic field \(\vec{B}\) in the \(-z\) direction. Which of the following statements are true?I. The particle moves in the magnetic field without any change ...
1. A particle P of mass 2 kg is moving with velocity (3i+ 4j)m s' when it receives an impulse. Immediately after the impulse is applied, P has velocity (2i-3j)m s-'.(a) Find the magnitude of the impulse.(5)(b)Find the angle between the direction of the impulse and the ...
It passes point at t=0 with initial velocity =(pmatrix)-13(pmatrix). The unit vectors (pmatrix)10(pmatrix) and (pmatrix) 0 1 (pmatrix) are pointing due east and due north respectively. (1)Show that after 1 second the particle is moving in the direction SE and find its speed. (...
Answer to: A particle moves with a velocity v1 for time t1 and velocity of v2 for time t2 along a straight line. What is the magnitude of average...
A particle moves in a straight line with velocity function v(t)=2√t+3cms^(-1) , t≥0Find the value oflim_(h→0)(v(1+h)-v(1))/hInterpret this value. 相关知识点: 试题来源: 解析 1 cms-2 =v'(1) is the instantaneous accn. at t = 1 s ...
A particles is moving eastwards with a velocity of 5 ms^(-1). In 10 s, the velocity changes to 5 ms^(-1) northwards. The average acceleration in this time is
【题目】A particle moves along the r-axis with velocityv(t)=e^(-2t) metres per second.At time t = 0, the particle is 2 metres to the right of theorigin. Find:I the displacement function for the particle 相关知识点: 试题来源: ...
15 Which of the following statements is correct for a particle moving in a vertical circle with constant angular velocity? B A The kinetic energy varies but the centripetal force acting on the particle is constant. B The kinetic energy of the particle is constant but the centripetal force ...
A particle moves along the x-axis with its velocity at time t given by v(t)=bt^2-ct+8, where b and c are constants and b does not equal c. For which of the following values of t is the particle at constant velocity?( ) A. t= c(2b) B. t=2bc C. t= (2b)c D. t=2b...
7) A particle moves in a straight line with a constant velocity of 5ms' for 2 seconds. It then moves with a constant acceleration of -2ms2 for 8 seconds. Sketch a velocity-time graph for the interval of 10 seconds and find:a) the final velocity,b) the total distance covered by the...