一道英语物理力学题A particle P is moving on the x-axis with constant deceleration 2.5 m s^-2.At time t=0,the particle P pass through the origin O,moving in the positive direction of x with speed 15 m s^-1.图是从O点开始（速度为15）

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一道英语物理力学题A particle P is moving on the x-axis with constant deceleration 2.5 m s^-2.At time t=0,the particle P pass through the origin O,moving in the positive direction of x with speed 15 m s^-1.图是从O点开始（速度为15）
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一道英语物理力学题A particle P is moving on the x-axis with constant deceleration 2.5 m s^-2.At time t=0,the particle P pass through the origin O,moving in the positive direction of x with speed 15 m s^-1.图是从O点开始（速度为15）
一道英语物理力学题
A particle P is moving on the x-axis with constant deceleration 2.5 m s^-2.At time t=0,the particle P pass through the origin O,moving in the positive direction of x with speed 15 m s^-1.图是从O点开始（速度为15）,到A点（速度为0）,然后球再返回去.求球返回到O点时的速度.

一道英语物理力学题A particle P is moving on the x-axis with constant deceleration 2.5 m s^-2.At time t=0,the particle P pass through the origin O,moving in the positive direction of x with speed 15 m s^-1.图是从O点开始（速度为15）
15m/s,v^2=v0^2-2aΔx,Δx=0

一道英语物理力学题A particle P is moving on the x-axis with constant deceleration 2.5 m s^-2.At time t=0,the particle P pass through the origin O,moving in the positive direction of x with speed 15 m s^-1.图是从O点开始（速度为15） 一道物理力学题 一道ap物理力学题 一道物理力学题 共点力平衡问题 一道物理基础题,关于力学的, 一道高一​物理力学题 物理力学题题 物理力学题> 物理力学题,急 一道物理电学力学综合计算题 问一道物理力学试题,12. 一道理论力学题. 一道高中力学题 理论力学一道题 一道力学的题, 力学英语求解释.Newton's second law of motion states that the force needed to accelerate a particle is equal to the product of the mass of the particle and the acceleration produced.The unit of force is the newton(N).It is defined as the force 【高一物理、力学、有图】一道受力问题.A物体受三个力,为什么? ap物理c力学题